1625464000 has 56 divisors (see below), whose sum is σ = 4025481408. Its totient is φ = 650182400.

The previous prime is 1625463979. The next prime is 1625464021. The reversal of 1625464000 is 4645261.

It is an interprime number because it is at equal distance from previous prime (1625463979) and next prime (1625464021).

It is a self number, because there is not a number n which added to its sum of digits gives 1625464000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93592 + ... + 109591.

Almost surely, 2^1625464000 is an apocalyptic number.

1625464000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625464000 is an abundant number, since it is smaller than the sum of its proper divisors (2400017408).

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

1625464000 is an equidigital number, since it uses as much as digits as its factorization.

1625464000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203210 (or 203190 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1625464000 is about 40317.0435424028. The cubic root of 1625464000 is about 1175.7792326264.

The spelling of 1625464000 in words is "one billion, six hundred twenty-five million, four hundred sixty-four thousand".