45955521 has 12 divisors (see below), whose sum is σ = 66618448. Its totient is φ = 30527064.

The previous prime is 45955499. The next prime is 45955543. The reversal of 45955521 is 12555954.

45955521 is a `hidden beast` number, since 45 + 95 + 5 + 521 = 666.

It is an interprime number because it is at equal distance from previous prime (45955499) and next prime (45955543).

It is not a de Polignac number, because 45955521 - 2⁵ = 45955489 is a prime.

It is a super-2 number, since 2×45955521² = 4223819820762882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45955571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6475 + ... + 11568.

Almost surely, 2^45955521 is an apocalyptic number.

It is an amenable number.

45955521 is a deficient number, since it is larger than the sum of its proper divisors (20662927).

45955521 is a wasteful number, since it uses less digits than its factorization.

45955521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18332 (or 18329 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 45955521 is about 6779.0501547046. The cubic root of 45955521 is about 358.1892640720.

The spelling of 45955521 in words is "forty-five million, nine hundred fifty-five thousand, five hundred twenty-one".