45566556 has 48 divisors (see below), whose sum is σ = 121879296. Its totient is φ = 12979584.

The previous prime is 45566501. The next prime is 45566557. The reversal of 45566556 is 65566554.

It is a super-2 number, since 2×45566556² = 4152622051402272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45566557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37795 + ... + 38981.

It is an arithmetic number, because the mean of its divisors is an integer number (2539152).

Almost surely, 2^45566556 is an apocalyptic number.

It is an amenable number.

45566556 is an abundant number, since it is smaller than the sum of its proper divisors (76312740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45566556 is a wasteful number, since it uses less digits than its factorization.

45566556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1656 counting only the distinct ones).

The product of its digits is 540000, while the sum is 42.

The square root of 45566556 is about 6750.3004377583. The cubic root of 45566556 is about 357.1758347301.

The spelling of 45566556 in words is "forty-five million, five hundred sixty-six thousand, five hundred fifty-six".