157725251205 has 16 divisors (see below), whose sum is σ = 253365827904. Its totient is φ = 83784992000.

The previous prime is 157725251197. The next prime is 157725251213. The reversal of 157725251205 is 502152527751.

It is an interprime number because it is at equal distance from previous prime (157725251197) and next prime (157725251213).

It is not a de Polignac number, because 157725251205 - 2³ = 157725251197 is a prime.

It is a congruent number.

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, 20942484 + ... + 20950013.

It is an arithmetic number, because the mean of its divisors is an integer number (15835364244).

Almost surely, 2^157725251205 is an apocalyptic number.

157725251205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157725251205 is a deficient number, since it is larger than the sum of its proper divisors (95640576699).

157725251205 is a wasteful number, since it uses less digits than its factorization.

157725251205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41892756.

The product of its (nonzero) digits is 245000, while the sum is 42.

Adding to 157725251205 its reverse (502152527751), we get a palindrome (659877778956).

The spelling of 157725251205 in words is "one hundred fifty-seven billion, seven hundred twenty-five million, two hundred fifty-one thousand, two hundred five".