55430572 has 12 divisors (see below), whose sum is σ = 97546680. Its totient is φ = 27560096.

The previous prime is 55430567. The next prime is 55430593. The reversal of 55430572 is 27503455.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37993 + ... + 39424.

It is an arithmetic number, because the mean of its divisors is an integer number (8128890).

Almost surely, 2^55430572 is an apocalyptic number.

It is an amenable number.

55430572 is a deficient number, since it is larger than the sum of its proper divisors (42116108).

55430572 is a wasteful number, since it uses less digits than its factorization.

55430572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77600 (or 77598 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 55430572 is about 7445.1710524339. The cubic root of 55430572 is about 381.2850584261.

The spelling of 55430572 in words is "fifty-five million, four hundred thirty thousand, five hundred seventy-two".