655501272 has 16 divisors (see below), whose sum is σ = 1638753240. Its totient is φ = 218500416.

The previous prime is 655501261. The next prime is 655501277. The reversal of 655501272 is 272105556.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655501277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13656253 + ... + 13656300.

Almost surely, 2^655501272 is an apocalyptic number.

It is an amenable number.

655501272 is an abundant number, since it is smaller than the sum of its proper divisors (983251968).

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

655501272 is a wasteful number, since it uses less digits than its factorization.

655501272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27312562 (or 27312558 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 655501272 is about 25602.7590700690. The cubic root of 655501272 is about 868.6760467594.

The spelling of 655501272 in words is "six hundred fifty-five million, five hundred one thousand, two hundred seventy-two".