825451464 has 16 divisors (see below), whose sum is σ = 2063628720. Its totient is φ = 275150480.

The previous prime is 825451427. The next prime is 825451489. The reversal of 825451464 is 464154528.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17196882 + ... + 17196929.

It is an arithmetic number, because the mean of its divisors is an integer number (128976795).

Almost surely, 2^825451464 is an apocalyptic number.

It is an amenable number.

825451464 is an abundant number, since it is smaller than the sum of its proper divisors (1238177256).

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

825451464 is a wasteful number, since it uses less digits than its factorization.

825451464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34393820 (or 34393816 counting only the distinct ones).

The product of its digits is 153600, while the sum is 39.

The square root of 825451464 is about 28730.6711373055. The cubic root of 825451464 is about 938.0597764849.

The spelling of 825451464 in words is "eight hundred twenty-five million, four hundred fifty-one thousand, four hundred sixty-four".