1325657061 has 12 divisors (see below), whose sum is σ = 1976607360. Its totient is φ = 855262440.

The previous prime is 1325657057. The next prime is 1325657087. The reversal of 1325657061 is 1607565231.

1325657061 is a `hidden beast` number, since 1 + 3 + 25 + 6 + 570 + 61 = 666.

It is not a de Polignac number, because 1325657061 - 2² = 1325657057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325657261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2375451 + ... + 2376008.

It is an arithmetic number, because the mean of its divisors is an integer number (164717280).

Almost surely, 2^1325657061 is an apocalyptic number.

It is an amenable number.

1325657061 is a deficient number, since it is larger than the sum of its proper divisors (650950299).

1325657061 is a wasteful number, since it uses less digits than its factorization.

1325657061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4751496 (or 4751493 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 1325657061 is about 36409.5737547146. The cubic root of 1325657061 is about 1098.5261420807.

The spelling of 1325657061 in words is "one billion, three hundred twenty-five million, six hundred fifty-seven thousand, sixty-one".