51150505 has 16 divisors (see below), whose sum is σ = 73200384. Its totient is φ = 33549120.

The previous prime is 51150499. The next prime is 51150511. The reversal of 51150505 is 50505115.

It is an interprime number because it is at equal distance from previous prime (51150499) and next prime (51150511).

It is not a de Polignac number, because 51150505 - 2⁹ = 51149993 is a prime.

It is a Duffinian 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, 30966 + ... + 32575.

It is an arithmetic number, because the mean of its divisors is an integer number (4575024).

Almost surely, 2^51150505 is an apocalyptic number.

It is an amenable number.

51150505 is a deficient number, since it is larger than the sum of its proper divisors (22049879).

51150505 is a wasteful number, since it uses less digits than its factorization.

51150505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63576.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 51150505 is about 7151.9581234792. The cubic root of 51150505 is about 371.2074142372.

The spelling of 51150505 in words is "fifty-one million, one hundred fifty thousand, five hundred five".