54969147 has 24 divisors (see below), whose sum is σ = 83874960. Its totient is φ = 34594560.

The previous prime is 54969139. The next prime is 54969163. The reversal of 54969147 is 74196945.

54969147 is a `hidden beast` number, since 549 + 69 + 1 + 47 = 666.

It is not a de Polignac number, because 54969147 - 2³ = 54969139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54969137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88783 + ... + 89399.

It is an arithmetic number, because the mean of its divisors is an integer number (3494790).

Almost surely, 2^54969147 is an apocalyptic number.

54969147 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

54969147 is a deficient number, since it is larger than the sum of its proper divisors (28905813).

54969147 is a wasteful number, since it uses less digits than its factorization.

54969147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1160 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 54969147 is about 7414.1180864618. The cubic root of 54969147 is about 380.2241221738.

It can be divided in two parts, 549 and 69147, that added together give a palindrome (69696).

The spelling of 54969147 in words is "fifty-four million, nine hundred sixty-nine thousand, one hundred forty-seven".