551121461 has 8 divisors (see below), whose sum is σ = 605206848. Its totient is φ = 497700000.

The previous prime is 551121449. The next prime is 551121463. The reversal of 551121461 is 164121155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551121461 - 2²⁶ = 484012597 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 551121461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551121463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164240 + ... + 167561.

It is an arithmetic number, because the mean of its divisors is an integer number (75650856).

Almost surely, 2^551121461 is an apocalyptic number.

It is an amenable number.

551121461 is a deficient number, since it is larger than the sum of its proper divisors (54085387).

551121461 is a wasteful number, since it uses less digits than its factorization.

551121461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331963.

The product of its digits is 1200, while the sum is 26.

The square root of 551121461 is about 23475.9762523308. The cubic root of 551121461 is about 819.8777633576.

The spelling of 551121461 in words is "five hundred fifty-one million, one hundred twenty-one thousand, four hundred sixty-one".