255205320502 has 16 divisors (see below), whose sum is σ = 417785969232. Its totient is φ = 115953178720.

The previous prime is 255205320493. The next prime is 255205320541. The reversal of 255205320502 is 205023502552.

It is a super-2 number, since 2×255205320502² (a number of 24 digits) 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, 2408953 + ... + 2512660.

It is an arithmetic number, because the mean of its divisors is an integer number (26111623077).

Almost surely, 2^255205320502 is an apocalyptic number.

255205320502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

255205320502 is a deficient number, since it is larger than the sum of its proper divisors (162580648730).

255205320502 is a wasteful number, since it uses less digits than its factorization.

255205320502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923983.

The product of its (nonzero) digits is 30000, while the sum is 31.

The spelling of 255205320502 in words is "two hundred fifty-five billion, two hundred five million, three hundred twenty thousand, five hundred two".