51246330 has 32 divisors (see below), whose sum is σ = 130227264. Its totient is φ = 12861696.

The previous prime is 51246329. The next prime is 51246337. The reversal of 51246330 is 3364215.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51246330.

It is not an unprimeable number, because it can be changed into a prime (51246337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49732 + ... + 50751.

It is an arithmetic number, because the mean of its divisors is an integer number (4069602).

Almost surely, 2^51246330 is an apocalyptic number.

51246330 is an abundant number, since it is smaller than the sum of its proper divisors (78980934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51246330 is a wasteful number, since it uses less digits than its factorization.

51246330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100510.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 51246330 is about 7158.6542031306. The cubic root of 51246330 is about 371.4390754285.

The spelling of 51246330 in words is "fifty-one million, two hundred forty-six thousand, three hundred thirty".