51455914 has 16 divisors (see below), whose sum is σ = 81396000. Its totient is φ = 24328944.

The previous prime is 51455903. The next prime is 51455917. The reversal of 51455914 is 41955415.

It is a happy number.

It is a super-2 number, since 2×51455914² = 5295422171150792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51455914.

It is not an unprimeable number, because it can be changed into a prime (51455917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29437 + ... + 31135.

It is an arithmetic number, because the mean of its divisors is an integer number (5087250).

Almost surely, 2^51455914 is an apocalyptic number.

51455914 is a deficient number, since it is larger than the sum of its proper divisors (29940086).

51455914 is a wasteful number, since it uses less digits than its factorization.

51455914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2517.

The product of its digits is 18000, while the sum is 34.

The square root of 51455914 is about 7173.2777723994. The cubic root of 51455914 is about 371.9447493772.

The spelling of 51455914 in words is "fifty-one million, four hundred fifty-five thousand, nine hundred fourteen".