51345465 has 16 divisors (see below), whose sum is σ = 82802688. Its totient is φ = 27167616.

The previous prime is 51345439. The next prime is 51345473. The reversal of 51345465 is 56454315.

It is not a de Polignac number, because 51345465 - 2⁵ = 51345433 is a prime.

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, 11572 + ... + 15381.

It is an arithmetic number, because the mean of its divisors is an integer number (5175168).

Almost surely, 2^51345465 is an apocalyptic number.

It is an amenable number.

51345465 is a deficient number, since it is larger than the sum of its proper divisors (31457223).

51345465 is a wasteful number, since it uses less digits than its factorization.

51345465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27088.

The product of its digits is 36000, while the sum is 33.

The square root of 51345465 is about 7165.5749943741. The cubic root of 51345465 is about 371.6784349691.

The spelling of 51345465 in words is "fifty-one million, three hundred forty-five thousand, four hundred sixty-five".