54815502 has 32 divisors (see below), whose sum is σ = 129337344. Its totient is φ = 15156000.

The previous prime is 54815477. The next prime is 54815503. The reversal of 54815502 is 20551845.

It is a self number, because there is not a number n which added to its sum of digits gives 54815502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54815503) 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, 19749 + ... + 22352.

It is an arithmetic number, because the mean of its divisors is an integer number (4041792).

Almost surely, 2^54815502 is an apocalyptic number.

54815502 is an abundant number, since it is smaller than the sum of its proper divisors (74521842).

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

54815502 is a wasteful number, since it uses less digits than its factorization.

54815502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42144.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 54815502 is about 7403.7491853790. The cubic root of 54815502 is about 379.8695350835.

The spelling of 54815502 in words is "fifty-four million, eight hundred fifteen thousand, five hundred two".