55651310 has 32 divisors (see below), whose sum is σ = 117688032. Its totient is φ = 18679680.

The previous prime is 55651307. The next prime is 55651333. The reversal of 55651310 is 1315655.

It is a super-2 number, since 2×55651310² = 6194136609432200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 55651310.

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, 18029 + ... + 20888.

It is an arithmetic number, because the mean of its divisors is an integer number (3677751).

Almost surely, 2^55651310 is an apocalyptic number.

55651310 is an abundant number, since it is smaller than the sum of its proper divisors (62036722).

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

55651310 is a wasteful number, since it uses less digits than its factorization.

55651310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38948.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 55651310 is about 7459.9805629774. The cubic root of 55651310 is about 381.7905113082.

Adding to 55651310 its reverse (1315655), we get a palindrome (56966965).

The spelling of 55651310 in words is "fifty-five million, six hundred fifty-one thousand, three hundred ten".