55550872 has 32 divisors (see below), whose sum is σ = 112477680. Its totient is φ = 25568640.

The previous prime is 55550867. The next prime is 55550879. The reversal of 55550872 is 27805555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550879) 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, 71478 + ... + 72250.

Almost surely, 2^55550872 is an apocalyptic number.

55550872 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55550872 is an abundant number, since it is smaller than the sum of its proper divisors (56926808).

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

55550872 is a wasteful number, since it uses less digits than its factorization.

55550872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1479 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 37.

The square root of 55550872 is about 7453.2457359194. The cubic root of 55550872 is about 381.5606912176.

The spelling of 55550872 in words is "fifty-five million, five hundred fifty thousand, eight hundred seventy-two".