1013556725 has 24 divisors (see below), whose sum is σ = 1300229280. Its totient is φ = 783155520.

The previous prime is 1013556721. The next prime is 1013556769. The reversal of 1013556725 is 5276553101.

It is not a de Polignac number, because 1013556725 - 2² = 1013556721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013556721) 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, 124634 + ... + 132516.

It is an arithmetic number, because the mean of its divisors is an integer number (54176220).

Almost surely, 2^1013556725 is an apocalyptic number.

It is an amenable number.

1013556725 is a deficient number, since it is larger than the sum of its proper divisors (286672555).

1013556725 is a wasteful number, since it uses less digits than its factorization.

1013556725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8069 (or 8064 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 1013556725 is about 31836.4056545333. The cubic root of 1013556725 is about 1004.4986402220.

The spelling of 1013556725 in words is "one billion, thirteen million, five hundred fifty-six thousand, seven hundred twenty-five".