51342507 has 12 divisors (see below), whose sum is σ = 74224800. Its totient is φ = 34199088.

The previous prime is 51342493. The next prime is 51342517. The reversal of 51342507 is 70524315.

It is a happy number.

It is not a de Polignac number, because 51342507 - 2⁴ = 51342491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51342517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16078 + ... + 19004.

It is an arithmetic number, because the mean of its divisors is an integer number (6185400).

Almost surely, 2^51342507 is an apocalyptic number.

51342507 is a deficient number, since it is larger than the sum of its proper divisors (22882293).

51342507 is a wasteful number, since it uses less digits than its factorization.

51342507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4882 (or 4879 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 51342507 is about 7165.3685878676. The cubic root of 51342507 is about 371.6712973967.

The spelling of 51342507 in words is "fifty-one million, three hundred forty-two thousand, five hundred seven".