55971025 has 12 divisors (see below), whose sum is σ = 75713904. Its totient is φ = 40706000.

The previous prime is 55971023. The next prime is 55971043. The reversal of 55971025 is 52017955.

It is not a de Polignac number, because 55971025 - 2¹ = 55971023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55971023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101491 + ... + 102040.

It is an arithmetic number, because the mean of its divisors is an integer number (6309492).

Almost surely, 2^55971025 is an apocalyptic number.

55971025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55971025 is a deficient number, since it is larger than the sum of its proper divisors (19742879).

55971025 is a wasteful number, since it uses less digits than its factorization.

55971025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203552 (or 203547 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 55971025 is about 7481.3785494386. The cubic root of 55971025 is about 382.5202404315.

The spelling of 55971025 in words is "fifty-five million, nine hundred seventy-one thousand, twenty-five".