55572949 has 16 divisors (see below), whose sum is σ = 60455808. Its totient is φ = 50890752.

The previous prime is 55572947. The next prime is 55572971. The reversal of 55572949 is 94927555.

It is a cyclic number.

It is not a de Polignac number, because 55572949 - 2¹ = 55572947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55572899 and 55572908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55572943) 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, 110232 + ... + 110734.

It is an arithmetic number, because the mean of its divisors is an integer number (3778488).

Almost surely, 2^55572949 is an apocalyptic number.

It is an amenable number.

55572949 is a deficient number, since it is larger than the sum of its proper divisors (4882859).

55572949 is a wasteful number, since it uses less digits than its factorization.

55572949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684.

The product of its digits is 567000, while the sum is 46.

The square root of 55572949 is about 7454.7266214128. The cubic root of 55572949 is about 381.6112310766.

The spelling of 55572949 in words is "fifty-five million, five hundred seventy-two thousand, nine hundred forty-nine".