52628431 has 8 divisors (see below), whose sum is σ = 53950160. Its totient is φ = 51311232.

The previous prime is 52628383. The next prime is 52628437. The reversal of 52628431 is 13482625.

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 52628431 - 2¹⁷ = 52497359 is a prime.

It is a super-2 number, since 2×52628431² = 5539503499043522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52628393 and 52628402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52628437) 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, 42781 + ... + 43993.

It is an arithmetic number, because the mean of its divisors is an integer number (6743770).

Almost surely, 2^52628431 is an apocalyptic number.

52628431 is a deficient number, since it is larger than the sum of its proper divisors (1321729).

52628431 is a wasteful number, since it uses less digits than its factorization.

52628431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265.

The product of its digits is 11520, while the sum is 31.

The square root of 52628431 is about 7254.5455405559. The cubic root of 52628431 is about 374.7487051215.

The spelling of 52628431 in words is "fifty-two million, six hundred twenty-eight thousand, four hundred thirty-one".