1025251439157 has 24 divisors (see below), whose sum is σ = 1630646316000. Its totient is φ = 615557357280.

The previous prime is 1025251439153. The next prime is 1025251439161. The reversal of 1025251439157 is 7519341525201.

1025251439157 is a `hidden beast` number, since 1 + 0 + 2 + 5 + 251 + 4 + 391 + 5 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (1025251439153) and next prime (1025251439161).

It is not a de Polignac number, because 1025251439157 - 2² = 1025251439153 is a prime.

It is a super-2 number, since 2×1025251439157² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025251439153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48382282 + ... + 48403467.

It is an arithmetic number, because the mean of its divisors is an integer number (67943596500).

Almost surely, 2^{1025251439157} is an apocalyptic number.

It is an amenable number.

1025251439157 is a deficient number, since it is larger than the sum of its proper divisors (605394876843).

1025251439157 is a wasteful number, since it uses less digits than its factorization.

1025251439157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96785873 (or 96785870 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The spelling of 1025251439157 in words is "one trillion, twenty-five billion, two hundred fifty-one million, four hundred thirty-nine thousand, one hundred fifty-seven".