315225520000 has 80 divisors (see below), whose sum is σ = 784734429600. Its totient is φ = 126090176000.

The previous prime is 315225519967. The next prime is 315225520069. The reversal of 315225520000 is 25522513.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1890160 + ... + 2050159.

It is an arithmetic number, because the mean of its divisors is an integer number (9809180370).

Almost surely, 2^315225520000 is an apocalyptic number.

It is an amenable number.

315225520000 is an abundant number, since it is smaller than the sum of its proper divisors (469508909600).

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

315225520000 is an frugal number, since it uses more digits than its factorization.

315225520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940353 (or 3940326 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The spelling of 315225520000 in words is "three hundred fifteen billion, two hundred twenty-five million, five hundred twenty thousand".