245401564 has 24 divisors (see below), whose sum is σ = 441515088. Its totient is φ = 119276160.

The previous prime is 245401493. The next prime is 245401573. The reversal of 245401564 is 465104542.

It is a happy number.

245401564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×245401564² = 120443855227292192, which contains 22 as substring.

It is a congruent number.

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, 45499 + ... + 50605.

It is an arithmetic number, because the mean of its divisors is an integer number (18396462).

Almost surely, 2^245401564 is an apocalyptic number.

It is an amenable number.

245401564 is a deficient number, since it is larger than the sum of its proper divisors (196113524).

245401564 is a wasteful number, since it uses less digits than its factorization.

245401564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5445 (or 5443 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 245401564 is about 15665.2980820666. The cubic root of 245401564 is about 626.0741541311.

The spelling of 245401564 in words is "two hundred forty-five million, four hundred one thousand, five hundred sixty-four".