2256402551 has 8 divisors (see below), whose sum is σ = 2557865520. Its totient is φ = 1973210112.

The previous prime is 2256402529. The next prime is 2256402553. The reversal of 2256402551 is 1552046522.

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 2256402551 - 2³⁰ = 1182660727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256402553) 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, 4567370 + ... + 4567863.

It is an arithmetic number, because the mean of its divisors is an integer number (319733190).

Almost surely, 2^2256402551 is an apocalyptic number.

2256402551 is a deficient number, since it is larger than the sum of its proper divisors (301462969).

2256402551 is a wasteful number, since it uses less digits than its factorization.

2256402551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9135265.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 2256402551 is about 47501.6057728578. The cubic root of 2256402551 is about 1311.6124407948.

The spelling of 2256402551 in words is "two billion, two hundred fifty-six million, four hundred two thousand, five hundred fifty-one".