55252665 has 64 divisors (see below), whose sum is σ = 111417600. Its totient is φ = 25754112.

The previous prime is 55252661. The next prime is 55252667. The reversal of 55252665 is 56625255.

It is not a de Polignac number, because 55252665 - 2² = 55252661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55252661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32517 + ... + 34173.

It is an arithmetic number, because the mean of its divisors is an integer number (1740900).

Almost surely, 2^55252665 is an apocalyptic number.

It is an amenable number.

55252665 is an abundant number, since it is smaller than the sum of its proper divisors (56164935).

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

55252665 is a wasteful number, since it uses less digits than its factorization.

55252665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1697 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 55252665 is about 7433.2136387972. The cubic root of 55252665 is about 380.8767038577.

The spelling of 55252665 in words is "fifty-five million, two hundred fifty-two thousand, six hundred sixty-five".