6972551 has 4 divisors (see below), whose sum is σ = 7197504. Its totient is φ = 6747600.

The previous prime is 6972547. The next prime is 6972569. The reversal of 6972551 is 1552796.

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 6972551 - 2² = 6972547 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 (6972571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112430 + ... + 112491.

It is an arithmetic number, because the mean of its divisors is an integer number (1799376).

Almost surely, 2^6972551 is an apocalyptic number.

6972551 is a deficient number, since it is larger than the sum of its proper divisors (224953).

6972551 is a wasteful number, since it uses less digits than its factorization.

6972551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224952.

The product of its digits is 18900, while the sum is 35.

The square root of 6972551 is about 2640.5588423665. The cubic root of 6972551 is about 191.0427524155.

The spelling of 6972551 in words is "six million, nine hundred seventy-two thousand, five hundred fifty-one".