655214280 has 96 divisors (see below), whose sum is σ = 2286584640. Its totient is φ = 149761920.

The previous prime is 655214227. The next prime is 655214281. The reversal of 655214280 is 82412556.

It is not an unprimeable number, because it can be changed into a prime (655214281) 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, 49836 + ... + 61595.

It is an arithmetic number, because the mean of its divisors is an integer number (23818590).

Almost surely, 2^655214280 is an apocalyptic number.

655214280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

655214280 is an abundant number, since it is smaller than the sum of its proper divisors (1631370360).

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

655214280 is a wasteful number, since it uses less digits than its factorization.

655214280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111459 (or 111448 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 655214280 is about 25597.1537480244. The cubic root of 655214280 is about 868.5492534798.

It can be divided in two parts, 6 and 55214280, that added together give a triangular number (55214286 = T₁₀₅₀₈).

The spelling of 655214280 in words is "six hundred fifty-five million, two hundred fourteen thousand, two hundred eighty".