55551370 has 16 divisors (see below), whose sum is σ = 114277248. Its totient is φ = 19046160.

The previous prime is 55551361. The next prime is 55551389. The reversal of 55551370 is 7315555.

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, 396726 + ... + 396865.

It is an arithmetic number, because the mean of its divisors is an integer number (7142328).

Almost surely, 2^55551370 is an apocalyptic number.

55551370 is an abundant number, since it is smaller than the sum of its proper divisors (58725878).

55551370 is a wasteful number, since it uses less digits than its factorization.

55551370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793605.

The product of its (nonzero) digits is 13125, while the sum is 31.

The square root of 55551370 is about 7453.2791441083. The cubic root of 55551370 is about 381.5618314137.

The spelling of 55551370 in words is "fifty-five million, five hundred fifty-one thousand, three hundred seventy".