255624022020 has 48 divisors (see below), whose sum is σ = 715769345088. Its totient is φ = 68164302720.

The previous prime is 255624022007. The next prime is 255624022067. The reversal of 255624022020 is 20220426552.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3444910 + ... + 3518330.

It is an arithmetic number, because the mean of its divisors is an integer number (14911861356).

Almost surely, 2^255624022020 is an apocalyptic number.

255624022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255624022020 is an abundant number, since it is smaller than the sum of its proper divisors (460145323068).

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

255624022020 is a wasteful number, since it uses less digits than its factorization.

255624022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131460 (or 131458 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 255624022020 its reverse (20220426552), we get a palindrome (275844448572).

The spelling of 255624022020 in words is "two hundred fifty-five billion, six hundred twenty-four million, twenty-two thousand, twenty".