51253842 has 16 divisors (see below), whose sum is σ = 102578112. Its totient is φ = 17072880.

The previous prime is 51253841. The next prime is 51253879. The reversal of 51253842 is 24835215.

It is not an unprimeable number, because it can be changed into a prime (51253841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14467 + ... + 17657.

It is an arithmetic number, because the mean of its divisors is an integer number (6411132).

Almost surely, 2^51253842 is an apocalyptic number.

51253842 is an abundant number, since it is smaller than the sum of its proper divisors (51324270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51253842 is a wasteful number, since it uses less digits than its factorization.

51253842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5873.

The product of its digits is 9600, while the sum is 30.

The square root of 51253842 is about 7159.1788635290. The cubic root of 51253842 is about 371.4572238111.

The spelling of 51253842 in words is "fifty-one million, two hundred fifty-three thousand, eight hundred forty-two".