7725732051 has 4 divisors (see below), whose sum is σ = 10300976072. Its totient is φ = 5150488032.

The previous prime is 7725732043. The next prime is 7725732073. The reversal of 7725732051 is 1502375277.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7725732051 - 2³ = 7725732043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7725732851) 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, 1287622006 + ... + 1287622011.

It is an arithmetic number, because the mean of its divisors is an integer number (2575244018).

Almost surely, 2^7725732051 is an apocalyptic number.

7725732051 is a deficient number, since it is larger than the sum of its proper divisors (2575244021).

7725732051 is a wasteful number, since it uses less digits than its factorization.

7725732051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575244020.

The product of its (nonzero) digits is 102900, while the sum is 39.

The square root of 7725732051 is about 87896.1435502150. The cubic root of 7725732051 is about 1976.8780555554.

The spelling of 7725732051 in words is "seven billion, seven hundred twenty-five million, seven hundred thirty-two thousand, fifty-one".