5551391253 has 8 divisors (see below), whose sum is σ = 7791426400. Its totient is φ = 3506141808.

The previous prime is 5551391231. The next prime is 5551391257. The reversal of 5551391253 is 3521931555.

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

It is not a de Polignac number, because 5551391253 - 2⁸ = 5551390997 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 (5551391257) 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, 48696358 + ... + 48696471.

It is an arithmetic number, because the mean of its divisors is an integer number (973928300).

Almost surely, 2^5551391253 is an apocalyptic number.

It is an amenable number.

5551391253 is a deficient number, since it is larger than the sum of its proper divisors (2240035147).

5551391253 is a wasteful number, since it uses less digits than its factorization.

5551391253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97392851.

The product of its digits is 101250, while the sum is 39.

The square root of 5551391253 is about 74507.6590224119. The cubic root of 5551391253 is about 1770.6549815107.

The spelling of 5551391253 in words is "five billion, five hundred fifty-one million, three hundred ninety-one thousand, two hundred fifty-three".