7972550507 has 4 divisors (see below), whose sum is σ = 7991048736. Its totient is φ = 7954052280.

The previous prime is 7972550477. The next prime is 7972550527. The reversal of 7972550507 is 7050552797.

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

It is a cyclic number.

It is not a de Polignac number, because 7972550507 - 2²² = 7968356203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7972550527) 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, 9248468 + ... + 9249329.

It is an arithmetic number, because the mean of its divisors is an integer number (1997762184).

Almost surely, 2^7972550507 is an apocalyptic number.

7972550507 is a deficient number, since it is larger than the sum of its proper divisors (18498229).

7972550507 is a wasteful number, since it uses less digits than its factorization.

7972550507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18498228.

The product of its (nonzero) digits is 771750, while the sum is 47.

The square root of 7972550507 is about 89289.1399163414. The cubic root of 7972550507 is about 1997.7099210200.

The spelling of 7972550507 in words is "seven billion, nine hundred seventy-two million, five hundred fifty thousand, five hundred seven".