2615656054625 has 24 divisors (see below), whose sum is σ = 3277949031864. Its totient is φ = 2083836384000.

The previous prime is 2615656054621. The next prime is 2615656054729. The reversal of 2615656054625 is 5264506565162.

It can be written as a sum of positive squares in 12 ways, for example, as 1179867371089 + 1435788683536 = 1086217^2 + 1198244^2 .

It is not a de Polignac number, because 2615656054625 - 2² = 2615656054621 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2615656054621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7079987 + ... + 7440263.

It is an arithmetic number, because the mean of its divisors is an integer number (136581209661).

Almost surely, 2^{2615656054625} is an apocalyptic number.

2615656054625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2615656054625 is a deficient number, since it is larger than the sum of its proper divisors (662292977239).

2615656054625 is an frugal number, since it uses more digits than its factorization.

2615656054625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360774 (or 360523 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 53.

The spelling of 2615656054625 in words is "two trillion, six hundred fifteen billion, six hundred fifty-six million, fifty-four thousand, six hundred twenty-five".