1357256553 has 8 divisors (see below), whose sum is σ = 1848179328. Its totient is φ = 885585744.

The previous prime is 1357256513. The next prime is 1357256561. The reversal of 1357256553 is 3556527531.

It is a happy number.

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

It is not a de Polignac number, because 1357256553 - 2⁸ = 1357256297 is a prime.

It is a super-2 number, since 2×1357256553² = 3684290701322883618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1357256503) 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, 4812826 + ... + 4813107.

It is an arithmetic number, because the mean of its divisors is an integer number (231022416).

Almost surely, 2^1357256553 is an apocalyptic number.

It is an amenable number.

1357256553 is a deficient number, since it is larger than the sum of its proper divisors (490922775).

1357256553 is an equidigital number, since it uses as much as digits as its factorization.

1357256553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9625983.

The product of its digits is 472500, while the sum is 42.

The square root of 1357256553 is about 36840.9629760135. The cubic root of 1357256553 is about 1107.1861616709.

It can be divided in two parts, 13572 and 56553, that added together give a triangular number (70125 = T₃₇₄).

The spelling of 1357256553 in words is "one billion, three hundred fifty-seven million, two hundred fifty-six thousand, five hundred fifty-three".