2525304978 has 64 divisors (see below), whose sum is σ = 6634656000. Its totient is φ = 696632832.

The previous prime is 2525304959. The next prime is 2525304983. The reversal of 2525304978 is 8794035252.

2525304978 is a `hidden beast` number, since 2 + 5 + 2 + 530 + 49 + 78 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104223 + ... + 126146.

It is an arithmetic number, because the mean of its divisors is an integer number (103666500).

Almost surely, 2^2525304978 is an apocalyptic number.

2525304978 is an abundant number, since it is smaller than the sum of its proper divisors (4109351022).

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

2525304978 is a wasteful number, since it uses less digits than its factorization.

2525304978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230416 (or 230410 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 2525304978 is about 50252.4126584983. The cubic root of 2525304978 is about 1361.7726628656.

The spelling of 2525304978 in words is "two billion, five hundred twenty-five million, three hundred four thousand, nine hundred seventy-eight".