55790451 has 40 divisors (see below), whose sum is σ = 86248800. Its totient is φ = 35925120.

The previous prime is 55790443. The next prime is 55790489. The reversal of 55790451 is 15409755.

It is not a de Polignac number, because 55790451 - 2³ = 55790443 is a prime.

It is a super-2 number, since 2×55790451² = 6225148845566802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55790401) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 511785 + ... + 511893.

It is an arithmetic number, because the mean of its divisors is an integer number (2156220).

Almost surely, 2^55790451 is an apocalyptic number.

55790451 is a deficient number, since it is larger than the sum of its proper divisors (30458349).

55790451 is a wasteful number, since it uses less digits than its factorization.

55790451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 55790451 is about 7469.3005696651. The cubic root of 55790451 is about 382.1084343541.

The spelling of 55790451 in words is "fifty-five million, seven hundred ninety thousand, four hundred fifty-one".