157725448 has 8 divisors (see below), whose sum is σ = 295735230. Its totient is φ = 78862720.

The previous prime is 157725433. The next prime is 157725457. The reversal of 157725448 is 844527751.

It can be written as a sum of positive squares in only one way, i.e., 145878084 + 11847364 = 12078^2 + 3442^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9857833 + ... + 9857848.

Almost surely, 2^157725448 is an apocalyptic number.

It is an amenable number.

157725448 is a deficient number, since it is larger than the sum of its proper divisors (138009782).

157725448 is a wasteful number, since it uses less digits than its factorization.

157725448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19715687 (or 19715683 counting only the distinct ones).

The product of its digits is 313600, while the sum is 43.

The square root of 157725448 is about 12558.8792493598. The cubic root of 157725448 is about 540.2987007699.

The spelling of 157725448 in words is "one hundred fifty-seven million, seven hundred twenty-five thousand, four hundred forty-eight".