1374256553 has 8 divisors (see below), whose sum is σ = 1460068680. Its totient is φ = 1291006080.

The previous prime is 1374256537. The next prime is 1374256571. The reversal of 1374256553 is 3556524731.

It can be written as a sum of positive squares in 4 ways, for example, as 960256144 + 414000409 = 30988^2 + 20347^2 .

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 1374256553 - 2⁴ = 1374256537 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 1374256553.

It is not an unprimeable number, because it can be changed into a prime (1374256153) 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, 639308 + ... + 641453.

It is an arithmetic number, because the mean of its divisors is an integer number (182508585).

Almost surely, 2^1374256553 is an apocalyptic number.

It is an amenable number.

1374256553 is a deficient number, since it is larger than the sum of its proper divisors (85812127).

1374256553 is a wasteful number, since it uses less digits than its factorization.

1374256553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280827.

The product of its digits is 378000, while the sum is 41.

The square root of 1374256553 is about 37070.9664427568. The cubic root of 1374256553 is about 1111.7895956593.

The spelling of 1374256553 in words is "one billion, three hundred seventy-four million, two hundred fifty-six thousand, five hundred fifty-three".