242552417157 has 48 divisors (see below), whose sum is σ = 358061383680. Its totient is φ = 158189804064.

The previous prime is 242552417087. The next prime is 242552417171. The reversal of 242552417157 is 751714255242.

It is a happy number.

242552417157 is a `hidden beast` number, since 2 + 4 + 2 + 5 + 524 + 1 + 71 + 57 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-242552417157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242552417557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34454844 + ... + 34461882.

It is an arithmetic number, because the mean of its divisors is an integer number (7459612160).

Almost surely, 2^242552417157 is an apocalyptic number.

It is an amenable number.

242552417157 is a deficient number, since it is larger than the sum of its proper divisors (115508966523).

242552417157 is a wasteful number, since it uses less digits than its factorization.

242552417157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7574 (or 7571 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

The spelling of 242552417157 in words is "two hundred forty-two billion, five hundred fifty-two million, four hundred seventeen thousand, one hundred fifty-seven".