2015355015425 has 12 divisors (see below), whose sum is σ = 2646042585516. Its totient is φ = 1517443776000.

The previous prime is 2015355015329. The next prime is 2015355015491. The reversal of 2015355015425 is 5245105535102.

It is a Cunningham number, because it is equal to 1419632²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 158003070016 + 1857351945409 = 397496^2 + 1362847^2 .

It is not a de Polignac number, because 2015355015425 - 2²⁶ = 2015287906561 is a prime.

It is a super-3 number, since 3×2015355015425³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian 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, 2371005476 + ... + 2371006325.

It is an arithmetic number, because the mean of its divisors is an integer number (220503548793).

Almost surely, 2^{2015355015425} is an apocalyptic number.

2015355015425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2015355015425 is a deficient number, since it is larger than the sum of its proper divisors (630687570091).

2015355015425 is a wasteful number, since it uses less digits than its factorization.

2015355015425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4742011828 (or 4742011823 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 2015355015425 in words is "two trillion, fifteen billion, three hundred fifty-five million, fifteen thousand, four hundred twenty-five".