51542522 has 16 divisors (see below), whose sum is σ = 80607744. Its totient is φ = 24690000.

The previous prime is 51542479. The next prime is 51542531. The reversal of 51542522 is 22524515.

It is a junction number, because it is equal to n+sod(n) for n = 51542491 and 51542500.

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, 2147 + ... + 10377.

It is an arithmetic number, because the mean of its divisors is an integer number (5037984).

Almost surely, 2^51542522 is an apocalyptic number.

51542522 is a deficient number, since it is larger than the sum of its proper divisors (29065222).

51542522 is a wasteful number, since it uses less digits than its factorization.

51542522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8365.

The product of its digits is 4000, while the sum is 26.

The square root of 51542522 is about 7179.3120840370. The cubic root of 51542522 is about 372.1533119564.

The spelling of 51542522 in words is "fifty-one million, five hundred forty-two thousand, five hundred twenty-two".