66251350 has 48 divisors (see below), whose sum is σ = 135437760. Its totient is φ = 23911200.

The previous prime is 66251299. The next prime is 66251357. The reversal of 66251350 is 5315266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66251357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89281 + ... + 90019.

It is an arithmetic number, because the mean of its divisors is an integer number (2821620).

Almost surely, 2^66251350 is an apocalyptic number.

66251350 is an abundant number, since it is smaller than the sum of its proper divisors (69186410).

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

66251350 is a wasteful number, since it uses less digits than its factorization.

66251350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 66251350 is about 8139.4932274682. The cubic root of 66251350 is about 404.6363651644.

The spelling of 66251350 in words is "sixty-six million, two hundred fifty-one thousand, three hundred fifty".