1725396013 has 4 divisors (see below), whose sum is σ = 1882250208. Its totient is φ = 1568541820.

The previous prime is 1725396007. The next prime is 1725396031. The reversal of 1725396013 is 3106935271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1725396013 - 2⁵ = 1725395981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1725396053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78427081 + ... + 78427102.

It is an arithmetic number, because the mean of its divisors is an integer number (470562552).

Almost surely, 2^1725396013 is an apocalyptic number.

It is an amenable number.

1725396013 is a deficient number, since it is larger than the sum of its proper divisors (156854195).

1725396013 is a wasteful number, since it uses less digits than its factorization.

1725396013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156854194.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 1725396013 is about 41537.8864772872. The cubic root of 1725396013 is about 1199.3969221966.

The spelling of 1725396013 in words is "one billion, seven hundred twenty-five million, three hundred ninety-six thousand, thirteen".