54987420 has 24 divisors (see below), whose sum is σ = 153964944. Its totient is φ = 14663296.

The previous prime is 54987409. The next prime is 54987433. The reversal of 54987420 is 2478945.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458169 + ... + 458288.

It is an arithmetic number, because the mean of its divisors is an integer number (6415206).

Almost surely, 2^54987420 is an apocalyptic number.

It is an amenable number.

54987420 is an abundant number, since it is smaller than the sum of its proper divisors (98977524).

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

54987420 is a wasteful number, since it uses less digits than its factorization.

54987420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916469 (or 916467 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 54987420 is about 7415.3502951648. The cubic root of 54987420 is about 380.2662492337.

The spelling of 54987420 in words is "fifty-four million, nine hundred eighty-seven thousand, four hundred twenty".