54256440 has 64 divisors (see below), whose sum is σ = 186024960. Its totient is φ = 12401280.

The previous prime is 54256439. The next prime is 54256451. The reversal of 54256440 is 4465245.

It is a super-2 number, since 2×54256440² = 5887522562947200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 54256398 and 54256407.

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, 31456 + ... + 33135.

It is an arithmetic number, because the mean of its divisors is an integer number (2906640).

Almost surely, 2^54256440 is an apocalyptic number.

It is an amenable number.

54256440 is an abundant number, since it is smaller than the sum of its proper divisors (131768520).

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

54256440 is a wasteful number, since it uses less digits than its factorization.

54256440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64612 (or 64608 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 54256440 is about 7365.8970940409. The cubic root of 54256440 is about 378.5736928444.

The spelling of 54256440 in words is "fifty-four million, two hundred fifty-six thousand, four hundred forty".