51454460 has 48 divisors (see below), whose sum is σ = 110587680. Its totient is φ = 20106240.

The previous prime is 51454453. The next prime is 51454477. The reversal of 51454460 is 6445415.

It is a super-2 number, since 2×51454460² = 5295122907783200, which contains 22 as substring.

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, 243755 + ... + 243965.

It is an arithmetic number, because the mean of its divisors is an integer number (2303910).

Almost surely, 2^51454460 is an apocalyptic number.

It is an amenable number.

51454460 is an abundant number, since it is smaller than the sum of its proper divisors (59133220).

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

51454460 is a wasteful number, since it uses less digits than its factorization.

51454460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 51454460 is about 7173.1764233148. The cubic root of 51454460 is about 371.9412459719.

Adding to 51454460 its reverse (6445415), we get a palindrome (57899875).

The spelling of 51454460 in words is "fifty-one million, four hundred fifty-four thousand, four hundred sixty".