2125554345015 has 16 divisors (see below), whose sum is σ = 3548751602688. Its totient is φ = 1084340767136.

The previous prime is 2125554344981. The next prime is 2125554345043. The reversal of 2125554345015 is 5105434555212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2125554345015 - 2²⁴ = 2125537567799 is a prime.

It is a super-2 number, since 2×2125554345015² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 3080513199 + ... + 3080513888.

It is an arithmetic number, because the mean of its divisors is an integer number (221796975168).

Almost surely, 2^{2125554345015} is an apocalyptic number.

2125554345015 is a deficient number, since it is larger than the sum of its proper divisors (1423197257673).

2125554345015 is a wasteful number, since it uses less digits than its factorization.

2125554345015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6161027118.

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 2125554345015 in words is "two trillion, one hundred twenty-five billion, five hundred fifty-four million, three hundred forty-five thousand, fifteen".