45526621 has 4 divisors (see below), whose sum is σ = 52030432. Its totient is φ = 39022812.

The previous prime is 45526609. The next prime is 45526639. The reversal of 45526621 is 12662554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45526621 - 2¹⁷ = 45395549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45526601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3251895 + ... + 3251908.

It is an arithmetic number, because the mean of its divisors is an integer number (13007608).

Almost surely, 2^45526621 is an apocalyptic number.

It is an amenable number.

45526621 is a deficient number, since it is larger than the sum of its proper divisors (6503811).

45526621 is an equidigital number, since it uses as much as digits as its factorization.

45526621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503810.

The product of its digits is 14400, while the sum is 31.

The square root of 45526621 is about 6747.3417728762. The cubic root of 45526621 is about 357.0714600364.

The spelling of 45526621 in words is "forty-five million, five hundred twenty-six thousand, six hundred twenty-one".