55156472 has 32 divisors (see below), whose sum is σ = 118609920. Its totient is φ = 23555040.

The previous prime is 55156441. The next prime is 55156499. The reversal of 55156472 is 27465155.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15833 + ... + 18999.

It is an arithmetic number, because the mean of its divisors is an integer number (3706560).

Almost surely, 2^55156472 is an apocalyptic number.

It is an amenable number.

55156472 is an abundant number, since it is smaller than the sum of its proper divisors (63453448).

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

55156472 is a wasteful number, since it uses less digits than its factorization.

55156472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491 (or 3487 counting only the distinct ones).

The product of its digits is 42000, while the sum is 35.

The square root of 55156472 is about 7426.7403347633. The cubic root of 55156472 is about 380.6555443594.

The spelling of 55156472 in words is "fifty-five million, one hundred fifty-six thousand, four hundred seventy-two".