1025617672 has 8 divisors (see below), whose sum is σ = 1923033150. Its totient is φ = 512808832.

The previous prime is 1025617631. The next prime is 1025617693. The reversal of 1025617672 is 2767165201.

It can be written as a sum of positive squares in only one way, i.e., 829785636 + 195832036 = 28806^2 + 13994^2 .

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, 64101097 + ... + 64101112.

Almost surely, 2^1025617672 is an apocalyptic number.

It is an amenable number.

1025617672 is a deficient number, since it is larger than the sum of its proper divisors (897415478).

1025617672 is a wasteful number, since it uses less digits than its factorization.

1025617672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128202215 (or 128202211 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 1025617672 is about 32025.2661503382. The cubic root of 1025617672 is about 1008.4673260331.

The spelling of 1025617672 in words is "one billion, twenty-five million, six hundred seventeen thousand, six hundred seventy-two".