7925399052 has 12 divisors (see below), whose sum is σ = 18492597816. Its totient is φ = 2641799680.

The previous prime is 7925399029. The next prime is 7925399071. The reversal of 7925399052 is 2509935297.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 7925398986 and 7925399004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330224949 + ... + 330224972.

It is an arithmetic number, because the mean of its divisors is an integer number (1541049818).

Almost surely, 2^7925399052 is an apocalyptic number.

It is an amenable number.

7925399052 is an abundant number, since it is smaller than the sum of its proper divisors (10567198764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7925399052 is a wasteful number, since it uses less digits than its factorization.

7925399052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660449928 (or 660449926 counting only the distinct ones).

The product of its (nonzero) digits is 1530900, while the sum is 51.

The square root of 7925399052 is about 89024.7103449374. The cubic root of 7925399052 is about 1993.7638296332.

The spelling of 7925399052 in words is "seven billion, nine hundred twenty-five million, three hundred ninety-nine thousand, fifty-two".