6974551553 has 4 divisors (see below), whose sum is σ = 7005008340. Its totient is φ = 6944094768.

The previous prime is 6974551537. The next prime is 6974551567. The reversal of 6974551553 is 3551554796.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5728673344 + 1245878209 = 75688^2 + 35297^2 .

It is a cyclic number.

It is not a de Polignac number, because 6974551553 - 2⁴ = 6974551537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6974551253) 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, 15228050 + ... + 15228507.

It is an arithmetic number, because the mean of its divisors is an integer number (1751252085).

Almost surely, 2^6974551553 is an apocalyptic number.

It is an amenable number.

6974551553 is a deficient number, since it is larger than the sum of its proper divisors (30456787).

6974551553 is a wasteful number, since it uses less digits than its factorization.

6974551553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30456786.

The product of its digits is 2835000, while the sum is 50.

The square root of 6974551553 is about 83513.7806173328. The cubic root of 6974551553 is about 1910.6102189367.

The spelling of 6974551553 in words is "six billion, nine hundred seventy-four million, five hundred fifty-one thousand, five hundred fifty-three".