145520552625 has 64 divisors (see below), whose sum is σ = 285665722368. Its totient is φ = 64377720000.

The previous prime is 145520552609. The next prime is 145520552699. The reversal of 145520552625 is 526255025541.

It is a happy number.

145520552625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145520552625 - 2⁴ = 145520552609 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 812761 + ... + 975510.

It is an arithmetic number, because the mean of its divisors is an integer number (4463526912).

Almost surely, 2^145520552625 is an apocalyptic number.

145520552625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145520552625 is a deficient number, since it is larger than the sum of its proper divisors (140145169743).

145520552625 is a wasteful number, since it uses less digits than its factorization.

145520552625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788327 (or 1788317 counting only the distinct ones).

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

The spelling of 145520552625 in words is "one hundred forty-five billion, five hundred twenty million, five hundred fifty-two thousand, six hundred twenty-five".