51956542 has 16 divisors (see below), whose sum is σ = 85187952. Its totient is φ = 23569920.

The previous prime is 51956537. The next prime is 51956551. The reversal of 51956542 is 24565915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10648 + ... + 14740.

It is an arithmetic number, because the mean of its divisors is an integer number (5324247).

Almost surely, 2^51956542 is an apocalyptic number.

51956542 is a deficient number, since it is larger than the sum of its proper divisors (33231410).

51956542 is a wasteful number, since it uses less digits than its factorization.

51956542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683.

The product of its digits is 54000, while the sum is 37.

The square root of 51956542 is about 7208.0886509532. The cubic root of 51956542 is about 373.1471075547.

The spelling of 51956542 in words is "fifty-one million, nine hundred fifty-six thousand, five hundred forty-two".