782481725 has 6 divisors (see below), whose sum is σ = 970277370. Its totient is φ = 625985360.

The previous prime is 782481719. The next prime is 782481727. The reversal of 782481725 is 527184287.

It can be written as a sum of positive squares in 3 ways, for example, as 5354596 + 777127129 = 2314^2 + 27877^2 .

It is a de Polignac number, because none of the positive numbers 2^k-782481725 is a prime.

It is a super-2 number, since 2×782481725² = 1224555299917951250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (782481727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15649610 + ... + 15649659.

It is an arithmetic number, because the mean of its divisors is an integer number (161712895).

Almost surely, 2^782481725 is an apocalyptic number.

It is an amenable number.

782481725 is a deficient number, since it is larger than the sum of its proper divisors (187795645).

782481725 is a wasteful number, since it uses less digits than its factorization.

782481725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31299279 (or 31299274 counting only the distinct ones).

The product of its digits is 250880, while the sum is 44.

The square root of 782481725 is about 27972.8748075703. The cubic root of 782481725 is about 921.4916433057.

The spelling of 782481725 in words is "seven hundred eighty-two million, four hundred eighty-one thousand, seven hundred twenty-five".