55572770 has 64 divisors (see below), whose sum is σ = 115568640. Its totient is φ = 19051200.

The previous prime is 55572763. The next prime is 55572791. The reversal of 55572770 is 7727555.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146441 + ... + 146819.

It is an arithmetic number, because the mean of its divisors is an integer number (1805760).

Almost surely, 2^55572770 is an apocalyptic number.

55572770 is an abundant number, since it is smaller than the sum of its proper divisors (59995870).

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

55572770 is a wasteful number, since it uses less digits than its factorization.

55572770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471.

The product of its (nonzero) digits is 85750, while the sum is 38.

The square root of 55572770 is about 7454.7146155973. The cubic root of 55572770 is about 381.6108213540.

The spelling of 55572770 in words is "fifty-five million, five hundred seventy-two thousand, seven hundred seventy".