54969915 has 96 divisors (see below), whose sum is σ = 120427776. Its totient is φ = 21047040.

The previous prime is 54969883. The next prime is 54969917. The reversal of 54969915 is 51996945.

It is not a de Polignac number, because 54969915 - 2⁵ = 54969883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54969917) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 104844 + ... + 105366.

It is an arithmetic number, because the mean of its divisors is an integer number (1254456).

Almost surely, 2^54969915 is an apocalyptic number.

54969915 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

54969915 is an abundant number, since it is smaller than the sum of its proper divisors (65457861).

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

54969915 is a wasteful number, since it uses less digits than its factorization.

54969915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 562 counting only the distinct ones).

The product of its digits is 437400, while the sum is 48.

The square root of 54969915 is about 7414.1698793594. The cubic root of 54969915 is about 380.2258929293.

It can be divided in two parts, 54 and 969915, that added together give a palindrome (969969).

The spelling of 54969915 in words is "fifty-four million, nine hundred sixty-nine thousand, nine hundred fifteen".