51460418 has 4 divisors (see below), whose sum is σ = 77190630. Its totient is φ = 25730208.

The previous prime is 51460397. The next prime is 51460429. The reversal of 51460418 is 81406415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81406415 = 5 ⋅16281283.

It can be written as a sum of positive squares in only one way, i.e., 49098049 + 2362369 = 7007^2 + 1537^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12865103 + ... + 12865106.

Almost surely, 2^51460418 is an apocalyptic number.

51460418 is a deficient number, since it is larger than the sum of its proper divisors (25730212).

51460418 is a wasteful number, since it uses less digits than its factorization.

51460418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25730211.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 51460418 is about 7173.5917084819. The cubic root of 51460418 is about 371.9556013224.

The spelling of 51460418 in words is "fifty-one million, four hundred sixty thousand, four hundred eighteen".