155425027525 has 12 divisors (see below), whose sum is σ = 192792390532. Its totient is φ = 124297856640.

The previous prime is 155425027523. The next prime is 155425027529. The reversal of 155425027525 is 525720524551.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 12905187201 + 142519840324 = 113601^2 + 377518^2 .

It is not a de Polignac number, because 155425027525 - 2¹ = 155425027523 is a prime.

It is a super-2 number, since 2×155425027525² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155425027523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 978834 + ... + 1126483.

Almost surely, 2^155425027525 is an apocalyptic number.

It is an amenable number.

155425027525 is a deficient number, since it is larger than the sum of its proper divisors (37367363007).

155425027525 is a wasteful number, since it uses less digits than its factorization.

155425027525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108280 (or 2108275 counting only the distinct ones).

The product of its (nonzero) digits is 700000, while the sum is 43.

The spelling of 155425027525 in words is "one hundred fifty-five billion, four hundred twenty-five million, twenty-seven thousand, five hundred twenty-five".