157620047425 has 6 divisors (see below), whose sum is σ = 195448858838. Its totient is φ = 126096037920.

The previous prime is 157620047419. The next prime is 157620047447. The reversal of 157620047425 is 524740026751.

It can be written as a sum of positive squares in 3 ways, for example, as 47374134336 + 110245913089 = 217656^2 + 332033^2 .

It is not a de Polignac number, because 157620047425 - 2¹⁷ = 157619916353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3152400924 + ... + 3152400973.

Almost surely, 2^157620047425 is an apocalyptic number.

It is an amenable number.

157620047425 is a deficient number, since it is larger than the sum of its proper divisors (37828811413).

157620047425 is an equidigital number, since it uses as much as digits as its factorization.

157620047425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6304801907 (or 6304801902 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 43.

The spelling of 157620047425 in words is "one hundred fifty-seven billion, six hundred twenty million, forty-seven thousand, four hundred twenty-five".