2521042655 has 8 divisors (see below), whose sum is σ = 3025620000. Its totient is φ = 2016588256.

The previous prime is 2521042651. The next prime is 2521042669. The reversal of 2521042655 is 5562401252.

2521042655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2521042655 - 2² = 2521042651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521042651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22886 + ... + 74604.

It is an arithmetic number, because the mean of its divisors is an integer number (378202500).

Almost surely, 2^2521042655 is an apocalyptic number.

2521042655 is a deficient number, since it is larger than the sum of its proper divisors (504577345).

2521042655 is an equidigital number, since it uses as much as digits as its factorization.

2521042655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61473.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 2521042655 is about 50209.9856104341. The cubic root of 2521042655 is about 1361.0060777531.

The spelling of 2521042655 in words is "two billion, five hundred twenty-one million, forty-two thousand, six hundred fifty-five".