51252104 has 16 divisors (see below), whose sum is σ = 98695500. Its totient is φ = 24933312.

The previous prime is 51252031. The next prime is 51252107. The reversal of 51252104 is 40125215.

It can be written as a sum of positive squares in 2 ways, for example, as 48972004 + 2280100 = 6998^2 + 1510^2 .

It is not an unprimeable number, because it can be changed into a prime (51252107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86279 + ... + 86870.

Almost surely, 2^51252104 is an apocalyptic number.

It is an amenable number.

51252104 is a deficient number, since it is larger than the sum of its proper divisors (47443396).

51252104 is a wasteful number, since it uses less digits than its factorization.

51252104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173192 (or 173188 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 51252104 is about 7159.0574798642. The cubic root of 51252104 is about 371.4530251018.

Adding to 51252104 its reverse (40125215), we get a palindrome (91377319).

The spelling of 51252104 in words is "fifty-one million, two hundred fifty-two thousand, one hundred four".