51146506 has 32 divisors (see below), whose sum is σ = 84419280. Its totient is φ = 23141376.

The previous prime is 51146477. The next prime is 51146533. The reversal of 51146506 is 60564115.

It can be written as a sum of positive squares in 8 ways, for example, as 47045881 + 4100625 = 6859^2 + 2025^2 .

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, 136936 + ... + 137308.

Almost surely, 2^51146506 is an apocalyptic number.

51146506 is a deficient number, since it is larger than the sum of its proper divisors (33272774).

51146506 is a wasteful number, since it uses less digits than its factorization.

51146506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 51146506 is about 7151.6785442300. The cubic root of 51146506 is about 371.1977401904.

The spelling of 51146506 in words is "fifty-one million, one hundred forty-six thousand, five hundred six".