51879575 has 12 divisors (see below), whose sum is σ = 70179288. Its totient is φ = 37730400.

The previous prime is 51879539. The next prime is 51879599. The reversal of 51879575 is 57597815.

It is a happy number.

It is not a de Polignac number, because 51879575 - 2⁶ = 51879511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94052 + ... + 94601.

It is an arithmetic number, because the mean of its divisors is an integer number (5848274).

Almost surely, 2^51879575 is an apocalyptic number.

51879575 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51879575 is a deficient number, since it is larger than the sum of its proper divisors (18299713).

51879575 is a wasteful number, since it uses less digits than its factorization.

51879575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188674 (or 188669 counting only the distinct ones).

The product of its digits is 441000, while the sum is 47.

The square root of 51879575 is about 7202.7477395783. The cubic root of 51879575 is about 372.9627598564.

The spelling of 51879575 in words is "fifty-one million, eight hundred seventy-nine thousand, five hundred seventy-five".