2556949053 has 16 divisors (see below), whose sum is σ = 3529800000. Its totient is φ = 1644464640.

The previous prime is 2556949049. The next prime is 2556949061. The reversal of 2556949053 is 3509496552.

It is a happy number.

It is not a de Polignac number, because 2556949053 - 2² = 2556949049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2556948993 and 2556949011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556949253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96898 + ... + 120428.

It is an arithmetic number, because the mean of its divisors is an integer number (220612500).

Almost surely, 2^2556949053 is an apocalyptic number.

It is an amenable number.

2556949053 is a deficient number, since it is larger than the sum of its proper divisors (972850947).

2556949053 is a wasteful number, since it uses less digits than its factorization.

2556949053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24812.

The product of its (nonzero) digits is 1458000, while the sum is 48.

The square root of 2556949053 is about 50566.2837570648. The cubic root of 2556949053 is about 1367.4370990211.

The spelling of 2556949053 in words is "two billion, five hundred fifty-six million, nine hundred forty-nine thousand, fifty-three".