55131460 has 24 divisors (see below), whose sum is σ = 120810816. Its totient is φ = 21093600.

The previous prime is 55131449. The next prime is 55131469. The reversal of 55131460 is 6413155.

It is not an unprimeable number, because it can be changed into a prime (55131469) 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, 59466 + ... + 60385.

It is an arithmetic number, because the mean of its divisors is an integer number (5033784).

Almost surely, 2^55131460 is an apocalyptic number.

It is an amenable number.

55131460 is an abundant number, since it is smaller than the sum of its proper divisors (65679356).

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

55131460 is a wasteful number, since it uses less digits than its factorization.

55131460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119883 (or 119881 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 55131460 is about 7425.0562287433. The cubic root of 55131460 is about 380.5979965888.

The spelling of 55131460 in words is "fifty-five million, one hundred thirty-one thousand, four hundred sixty".