55315608 has 32 divisors (see below), whose sum is σ = 139720560. Its totient is φ = 18247680.

The previous prime is 55315597. The next prime is 55315609. The reversal of 55315608 is 80651355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55315609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9553 + ... + 14208.

Almost surely, 2^55315608 is an apocalyptic number.

It is an amenable number.

55315608 is an abundant number, since it is smaller than the sum of its proper divisors (84404952).

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

55315608 is a wasteful number, since it uses less digits than its factorization.

55315608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23867 (or 23863 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 55315608 is about 7437.4463359409. The cubic root of 55315608 is about 381.0212786319.

It can be divided in two parts, 553 and 15608, that added together give a palindrome (16161).

The spelling of 55315608 in words is "fifty-five million, three hundred fifteen thousand, six hundred eight".