55993470 has 32 divisors (see below), whose sum is σ = 144722592. Its totient is φ = 13782912.

The previous prime is 55993463. The next prime is 55993481. The reversal of 55993470 is 7439955.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71397 + ... + 72176.

It is an arithmetic number, because the mean of its divisors is an integer number (4522581).

Almost surely, 2^55993470 is an apocalyptic number.

55993470 is an abundant number, since it is smaller than the sum of its proper divisors (88729122).

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

55993470 is a wasteful number, since it uses less digits than its factorization.

55993470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143596.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 55993470 is about 7482.8784568507. The cubic root of 55993470 is about 382.5713652138.

The spelling of 55993470 in words is "fifty-five million, nine hundred ninety-three thousand, four hundred seventy".