551403413 has 6 divisors (see below), whose sum is σ = 606088182. Its totient is φ = 501275720.

The previous prime is 551403379. The next prime is 551403469. The reversal of 551403413 is 314304155.

It can be written as a sum of positive squares in only one way, i.e., 320302609 + 231100804 = 17897^2 + 15202^2 .

It is not a de Polignac number, because 551403413 - 2⁸ = 551403157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551403493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2278406 + ... + 2278647.

It is an arithmetic number, because the mean of its divisors is an integer number (101014697).

Almost surely, 2^551403413 is an apocalyptic number.

It is an amenable number.

551403413 is a deficient number, since it is larger than the sum of its proper divisors (54684769).

551403413 is a wasteful number, since it uses less digits than its factorization.

551403413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557075 (or 4557064 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 551403413 is about 23481.9806021553. The cubic root of 551403413 is about 820.0175551467.

Adding to 551403413 its reverse (314304155), we get a palindrome (865707568).

The spelling of 551403413 in words is "five hundred fifty-one million, four hundred three thousand, four hundred thirteen".