55251960 has 64 divisors (see below), whose sum is σ = 171482400. Its totient is φ = 14224896.

The previous prime is 55251941. The next prime is 55251967. The reversal of 55251960 is 6915255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55251967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4459 + ... + 11418.

Almost surely, 2^55251960 is an apocalyptic number.

It is an amenable number.

55251960 is an abundant number, since it is smaller than the sum of its proper divisors (116230440).

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

55251960 is a wasteful number, since it uses less digits than its factorization.

55251960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15920 (or 15916 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 55251960 is about 7433.1662163576. The cubic root of 55251960 is about 380.8750839104.

The spelling of 55251960 in words is "fifty-five million, two hundred fifty-one thousand, nine hundred sixty".