51893142 has 32 divisors (see below), whose sum is σ = 124857600. Its totient is φ = 14046048.

The previous prime is 51893137. The next prime is 51893143. The reversal of 51893142 is 24139815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51893143) 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, 31717 + ... + 33312.

It is an arithmetic number, because the mean of its divisors is an integer number (3901800).

Almost surely, 2^51893142 is an apocalyptic number.

51893142 is an abundant number, since it is smaller than the sum of its proper divisors (72964458).

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

51893142 is a wasteful number, since it uses less digits than its factorization.

51893142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65060.

The product of its digits is 8640, while the sum is 33.

The square root of 51893142 is about 7203.6894713751. The cubic root of 51893142 is about 372.9952681203.

The spelling of 51893142 in words is "fifty-one million, eight hundred ninety-three thousand, one hundred forty-two".