51521035 has 32 divisors (see below), whose sum is σ = 67184640. Its totient is φ = 37834368.

The previous prime is 51521021. The next prime is 51521077. The reversal of 51521035 is 53012515.

It is not a de Polignac number, because 51521035 - 2¹⁵ = 51488267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51520997 and 51521015.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481452 + ... + 481558.

It is an arithmetic number, because the mean of its divisors is an integer number (2099520).

Almost surely, 2^51521035 is an apocalyptic number.

51521035 is a deficient number, since it is larger than the sum of its proper divisors (15663605).

51521035 is a wasteful number, since it uses less digits than its factorization.

51521035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 51521035 is about 7177.8154754772. The cubic root of 51521035 is about 372.1015904564.

The spelling of 51521035 in words is "fifty-one million, five hundred twenty-one thousand, thirty-five".