72435053 has 8 divisors (see below), whose sum is σ = 74259000. Its totient is φ = 70633728.

The previous prime is 72435029. The next prime is 72435061. The reversal of 72435053 is 35053427.

It can be written as a sum of positive squares in 4 ways, for example, as 1841449 + 70593604 = 1357^2 + 8402^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72435053 - 2¹² = 72430957 is a prime.

It is a super-2 number, since 2×72435053² = 10493673806225618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72435553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923 + ... + 12071.

It is an arithmetic number, because the mean of its divisors is an integer number (9282375).

Almost surely, 2^72435053 is an apocalyptic number.

72435053 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

72435053 is a deficient number, since it is larger than the sum of its proper divisors (1823947).

72435053 is a wasteful number, since it uses less digits than its factorization.

72435053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11311.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 72435053 is about 8510.8785092962. The cubic root of 72435053 is about 416.8529962005.

The spelling of 72435053 in words is "seventy-two million, four hundred thirty-five thousand, fifty-three".