157542489625 has 16 divisors (see below), whose sum is σ = 201926898576. Its totient is φ = 122627664000.

The previous prime is 157542489581. The next prime is 157542489631. The reversal of 157542489625 is 526984245751.

It can be written as a sum of positive squares in 8 ways, for example, as 35480996496 + 122061493129 = 188364^2 + 349373^2 .

It is not a de Polignac number, because 157542489625 - 2¹⁹ = 157541965337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157542489625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17026996 + ... + 17036245.

It is an arithmetic number, because the mean of its divisors is an integer number (12620431161).

Almost surely, 2^157542489625 is an apocalyptic number.

It is an amenable number.

157542489625 is a deficient number, since it is larger than the sum of its proper divisors (44384408951).

157542489625 is an equidigital number, since it uses as much as digits as its factorization.

157542489625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34063293 (or 34063283 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 58.

The spelling of 157542489625 in words is "one hundred fifty-seven billion, five hundred forty-two million, four hundred eighty-nine thousand, six hundred twenty-five".