51142826 has 32 divisors (see below), whose sum is σ = 90599040. Its totient is φ = 21196800.

The previous prime is 51142789. The next prime is 51142829. The reversal of 51142826 is 62824115.

It is not an unprimeable number, because it can be changed into a prime (51142829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79466 + ... + 80106.

It is an arithmetic number, because the mean of its divisors is an integer number (2831220).

Almost surely, 2^51142826 is an apocalyptic number.

51142826 is a deficient number, since it is larger than the sum of its proper divisors (39456214).

51142826 is a wasteful number, since it uses less digits than its factorization.

51142826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830.

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

The square root of 51142826 is about 7151.4212573446. The cubic root of 51142826 is about 371.1888373963.

The spelling of 51142826 in words is "fifty-one million, one hundred forty-two thousand, eight hundred twenty-six".