1551425511025 has 12 divisors (see below), whose sum is σ = 2071749759772. Its totient is φ = 1145668069440.

The previous prime is 1551425511019. The next prime is 1551425511079. The reversal of 1551425511025 is 5201155241551.

It can be written as a sum of positive squares in 6 ways, for example, as 167110899264 + 1384314611761 = 408792^2 + 1176569^2 .

It is not a de Polignac number, because 1551425511025 - 2³ = 1551425511017 is a prime.

It is a super-2 number, since 2×1551425511025² (a number of 25 digits) contains 22 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, 2386808154 + ... + 2386808803.

Almost surely, 2^{1551425511025} is an apocalyptic number.

It is an amenable number.

1551425511025 is a deficient number, since it is larger than the sum of its proper divisors (520324248747).

1551425511025 is a wasteful number, since it uses less digits than its factorization.

1551425511025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773616980 (or 4773616975 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 37.

The spelling of 1551425511025 in words is "one trillion, five hundred fifty-one billion, four hundred twenty-five million, five hundred eleven thousand, twenty-five".