54492921 has 12 divisors (see below), whose sum is σ = 89956672. Its totient is φ = 31138776.

The previous prime is 54492917. The next prime is 54492923. The reversal of 54492921 is 12929445.

54492921 is a `hidden beast` number, since 544 + 92 + 9 + 21 = 666.

It is not a de Polignac number, because 54492921 - 2² = 54492917 is a prime.

It is a super-2 number, since 2×54492921² = 5938956878224482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54492923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432421 + ... + 432546.

Almost surely, 2^54492921 is an apocalyptic number.

It is an amenable number.

54492921 is a deficient number, since it is larger than the sum of its proper divisors (35463751).

54492921 is a wasteful number, since it uses less digits than its factorization.

54492921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864980 (or 864977 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 54492921 is about 7381.9320641686. The cubic root of 54492921 is about 379.1229101756.

The spelling of 54492921 in words is "fifty-four million, four hundred ninety-two thousand, nine hundred twenty-one".