2535656220 has 36 divisors (see below), whose sum is σ = 7691491080. Its totient is φ = 676174944.

The previous prime is 2535656203. The next prime is 2535656231. The reversal of 2535656220 is 226565352.

2535656220 is a `hidden beast` number, since 2 + 535 + 65 + 62 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7043310 + ... + 7043669.

It is an arithmetic number, because the mean of its divisors is an integer number (213652530).

Almost surely, 2^2535656220 is an apocalyptic number.

2535656220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2535656220 is an abundant number, since it is smaller than the sum of its proper divisors (5155834860).

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

2535656220 is a wasteful number, since it uses less digits than its factorization.

2535656220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14086994 (or 14086989 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 2535656220 is about 50355.2998203764. The cubic root of 2535656220 is about 1363.6307648013.

The spelling of 2535656220 in words is "two billion, five hundred thirty-five million, six hundred fifty-six thousand, two hundred twenty".