225715213507464 has 24 divisors (see below), whose sum is σ = 611312036582910. Its totient is φ = 75238404502464.

The previous prime is 225715213507423. The next prime is 225715213507493. The reversal of 225715213507464 is 464705312517522.

225715213507464 is a `hidden beast` number, since 2 + 2 + 5 + 7 + 1 + 521 + 3 + 50 + 7 + 4 + 64 = 666.

225715213507464 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 188579084408100 + 37136129099364 = 13732410^2 + 6093942^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×225715213507464² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225715213507464.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1567466760397 + ... + 1567466760540.

Almost surely, 2^{225715213507464} is an apocalyptic number.

225715213507464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225715213507464 is an abundant number, since it is smaller than the sum of its proper divisors (385596823075446).

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

225715213507464 is a wasteful number, since it uses less digits than its factorization.

225715213507464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134933520949 (or 3134933520942 counting only the distinct ones).

The product of its (nonzero) digits is 14112000, while the sum is 54.

The spelling of 225715213507464 in words is "two hundred twenty-five trillion, seven hundred fifteen billion, two hundred thirteen million, five hundred seven thousand, four hundred sixty-four".