551513413 has 4 divisors (see below), whose sum is σ = 601651008. Its totient is φ = 501375820.

The previous prime is 551513401. The next prime is 551513419. The reversal of 551513413 is 314315155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 551513413 - 2⁹ = 551512901 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 (551513419) 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, 25068781 + ... + 25068802.

It is an arithmetic number, because the mean of its divisors is an integer number (150412752).

Almost surely, 2^551513413 is an apocalyptic number.

It is an amenable number.

551513413 is a deficient number, since it is larger than the sum of its proper divisors (50137595).

551513413 is a wasteful number, since it uses less digits than its factorization.

551513413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50137594.

The product of its digits is 4500, while the sum is 28.

The square root of 551513413 is about 23484.3227068613. The cubic root of 551513413 is about 820.0720802194.

Adding to 551513413 its reverse (314315155), we get a palindrome (865828568).

It can be divided in two parts, 55151 and 3413, that added together give a square (58564 = 242²).

The spelling of 551513413 in words is "five hundred fifty-one million, five hundred thirteen thousand, four hundred thirteen".