451625064 has 32 divisors (see below), whose sum is σ = 1231705440. Its totient is φ = 136856000.

The previous prime is 451625051. The next prime is 451625093. The reversal of 451625064 is 460526154.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855087 + ... + 855614.

It is an arithmetic number, because the mean of its divisors is an integer number (38490795).

Almost surely, 2^451625064 is an apocalyptic number.

451625064 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

451625064 is an abundant number, since it is smaller than the sum of its proper divisors (780080376).

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

451625064 is a wasteful number, since it uses less digits than its factorization.

451625064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710721 (or 1710717 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 451625064 is about 21251.4720431315. The cubic root of 451625064 is about 767.2307700514.

The spelling of 451625064 in words is "four hundred fifty-one million, six hundred twenty-five thousand, sixty-four".