55551552 has 56 divisors (see below), whose sum is σ = 167981376. Its totient is φ = 15871488.

The previous prime is 55551547. The next prime is 55551557. The reversal of 55551552 is 25515555.

It is an interprime number because it is at equal distance from previous prime (55551547) and next prime (55551557).

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (55551557) 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, 19323 + ... + 22010.

Almost surely, 2^55551552 is an apocalyptic number.

It is an amenable number.

55551552 is an abundant number, since it is smaller than the sum of its proper divisors (112429824).

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

55551552 is a wasteful number, since it uses less digits than its factorization.

55551552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41355 (or 41345 counting only the distinct ones).

The product of its digits is 31250, while the sum is 33.

The square root of 55551552 is about 7453.2913534894. The cubic root of 55551552 is about 381.5622481101.

The spelling of 55551552 in words is "fifty-five million, five hundred fifty-one thousand, five hundred fifty-two".