54670521 has 16 divisors (see below), whose sum is σ = 78494400. Its totient is φ = 33719808.

The previous prime is 54670513. The next prime is 54670537. The reversal of 54670521 is 12507645.

It is not a de Polignac number, because 54670521 - 2³ = 54670513 is a prime.

It is a super-2 number, since 2×54670521² = 5977731732822882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54670921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6076 + ... + 12093.

It is an arithmetic number, because the mean of its divisors is an integer number (4905900).

Almost surely, 2^54670521 is an apocalyptic number.

54670521 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

54670521 is a deficient number, since it is larger than the sum of its proper divisors (23823879).

54670521 is a wasteful number, since it uses less digits than its factorization.

54670521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18248.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 54670521 is about 7393.9516498284. The cubic root of 54670521 is about 379.5343349466.

The spelling of 54670521 in words is "fifty-four million, six hundred seventy thousand, five hundred twenty-one".