551912974 has 4 divisors (see below), whose sum is σ = 827869464. Its totient is φ = 275956486.

The previous prime is 551912971. The next prime is 551912987. The reversal of 551912974 is 479219155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 479219155 = 5 ⋅95843831.

It is a self number, because there is not a number n which added to its sum of digits gives 551912974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551912971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137978242 + ... + 137978245.

It is an arithmetic number, because the mean of its divisors is an integer number (206967366).

Almost surely, 2^551912974 is an apocalyptic number.

551912974 is a deficient number, since it is larger than the sum of its proper divisors (275956490).

551912974 is a wasteful number, since it uses less digits than its factorization.

551912974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275956489.

The product of its digits is 113400, while the sum is 43.

The square root of 551912974 is about 23492.8281396685. The cubic root of 551912974 is about 820.2700746317.

The spelling of 551912974 in words is "five hundred fifty-one million, nine hundred twelve thousand, nine hundred seventy-four".