155314613525 has 12 divisors (see below), whose sum is σ = 192795688932. Its totient is φ = 124119066240.

The previous prime is 155314613501. The next prime is 155314613549. The reversal of 155314613525 is 525316413551.

It is an interprime number because it is at equal distance from previous prime (155314613501) and next prime (155314613549).

It can be written as a sum of positive squares in 6 ways, for example, as 1695298276 + 153619315249 = 41174^2 + 391943^2 .

It is not a de Polignac number, because 155314613525 - 2³² = 151019646229 is a prime.

It is a super-2 number, since 2×155314613525² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 3291722 + ... + 3338571.

It is an arithmetic number, because the mean of its divisors is an integer number (16066307411).

Almost surely, 2^155314613525 is an apocalyptic number.

It is an amenable number.

155314613525 is a deficient number, since it is larger than the sum of its proper divisors (37481075407).

155314613525 is an equidigital number, since it uses as much as digits as its factorization.

155314613525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631240 (or 6631235 counting only the distinct ones).

The product of its digits is 270000, while the sum is 41.

The spelling of 155314613525 in words is "one hundred fifty-five billion, three hundred fourteen million, six hundred thirteen thousand, five hundred twenty-five".