145655525 has 12 divisors (see below), whose sum is σ = 180764100. Its totient is φ = 116426880.

The previous prime is 145655519. The next prime is 145655533. The reversal of 145655525 is 525556541.

145655525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2829124 + 142826401 = 1682^2 + 11951^2 .

It is not a de Polignac number, because 145655525 - 2⁴ = 145655509 is a prime.

It is a super-3 number, since 3×145655525³ (a number of 25 digits) contains 333 as substring.

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, 50831 + ... + 53619.

It is an arithmetic number, because the mean of its divisors is an integer number (15063675).

Almost surely, 2^145655525 is an apocalyptic number.

It is an amenable number.

145655525 is a deficient number, since it is larger than the sum of its proper divisors (35108575).

145655525 is a wasteful number, since it uses less digits than its factorization.

145655525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888 (or 4883 counting only the distinct ones).

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

The square root of 145655525 is about 12068.7830786704. The cubic root of 145655525 is about 526.1492887319.

The spelling of 145655525 in words is "one hundred forty-five million, six hundred fifty-five thousand, five hundred twenty-five".