7912055251 has 4 divisors (see below), whose sum is σ = 7914289432. Its totient is φ = 7909821072.

The previous prime is 7912055227. The next prime is 7912055257. The reversal of 7912055251 is 1525502197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1525502197 = 109 ⋅13995433.

It is a cyclic number.

It is not a de Polignac number, because 7912055251 - 2¹⁵ = 7912022483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7912055251.

It is not an unprimeable number, because it can be changed into a prime (7912055257) 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, 1111770 + ... + 1118863.

It is an arithmetic number, because the mean of its divisors is an integer number (1978572358).

Almost surely, 2^7912055251 is an apocalyptic number.

7912055251 is a deficient number, since it is larger than the sum of its proper divisors (2234181).

7912055251 is a wasteful number, since it uses less digits than its factorization.

7912055251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234180.

The product of its (nonzero) digits is 31500, while the sum is 37.

The square root of 7912055251 is about 88949.7344065737. The cubic root of 7912055251 is about 1992.6442505582.

The spelling of 7912055251 in words is "seven billion, nine hundred twelve million, fifty-five thousand, two hundred fifty-one".