54187974 has 32 divisors (see below), whose sum is σ = 120687840. Its totient is φ = 18022176.

The previous prime is 54187967. The next prime is 54187997. The reversal of 54187974 is 47978145.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32284 + ... + 33920.

It is an arithmetic number, because the mean of its divisors is an integer number (3771495).

Almost surely, 2^54187974 is an apocalyptic number.

54187974 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

54187974 is an abundant number, since it is smaller than the sum of its proper divisors (66499866).

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

54187974 is a wasteful number, since it uses less digits than its factorization.

54187974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261 (or 2255 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 54187974 is about 7361.2481278653. The cubic root of 54187974 is about 378.4143855705.

It can be divided in two parts, 54 and 187974, that multiplied together give a square (10150596 = 3186²).

The spelling of 54187974 in words is "fifty-four million, one hundred eighty-seven thousand, nine hundred seventy-four".