25533255620 has 48 divisors (see below), whose sum is σ = 54967066560. Its totient is φ = 9959054976.

The previous prime is 25533255607. The next prime is 25533255641. The reversal of 25533255620 is 2655233552.

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, 98891 + ... + 246669.

It is an arithmetic number, because the mean of its divisors is an integer number (1145147220).

Almost surely, 2^25533255620 is an apocalyptic number.

25533255620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25533255620 is an abundant number, since it is smaller than the sum of its proper divisors (29433810940).

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

25533255620 is a wasteful number, since it uses less digits than its factorization.

25533255620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148004 (or 148002 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 38.

The spelling of 25533255620 in words is "twenty-five billion, five hundred thirty-three million, two hundred fifty-five thousand, six hundred twenty".