655472951 has 24 divisors (see below), whose sum is σ = 796942080. Its totient is φ = 537010992.

The previous prime is 655472947. The next prime is 655472971. The reversal of 655472951 is 159274556.

It is a happy number.

It is not a de Polignac number, because 655472951 - 2² = 655472947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655472921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95720 + ... + 102338.

It is an arithmetic number, because the mean of its divisors is an integer number (33205920).

Almost surely, 2^655472951 is an apocalyptic number.

655472951 is a deficient number, since it is larger than the sum of its proper divisors (141469129).

655472951 is a wasteful number, since it uses less digits than its factorization.

655472951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6723 (or 6716 counting only the distinct ones).

The product of its digits is 378000, while the sum is 44.

The square root of 655472951 is about 25602.2059791730. The cubic root of 655472951 is about 868.6635361665.

The spelling of 655472951 in words is "six hundred fifty-five million, four hundred seventy-two thousand, nine hundred fifty-one".