653255772 has 24 divisors (see below), whose sum is σ = 1641514896. Its totient is φ = 201001728.

The previous prime is 653255749. The next prime is 653255791. The reversal of 653255772 is 277552356.

It is a happy number.

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, 2093613 + ... + 2093924.

It is an arithmetic number, because the mean of its divisors is an integer number (68396454).

Almost surely, 2^653255772 is an apocalyptic number.

It is an amenable number.

653255772 is an abundant number, since it is smaller than the sum of its proper divisors (988259124).

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

653255772 is a wasteful number, since it uses less digits than its factorization.

653255772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187557 (or 4187555 counting only the distinct ones).

The product of its digits is 441000, while the sum is 42.

The square root of 653255772 is about 25558.8687543091. The cubic root of 653255772 is about 867.6829931739.

The spelling of 653255772 in words is "six hundred fifty-three million, two hundred fifty-five thousand, seven hundred seventy-two".