2557232554 has 4 divisors (see below), whose sum is σ = 3835848834. Its totient is φ = 1278616276.

The previous prime is 2557232549. The next prime is 2557232569. The reversal of 2557232554 is 4552327552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2517731329 + 39501225 = 50177^2 + 6285^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639308137 + ... + 639308140.

Almost surely, 2^2557232554 is an apocalyptic number.

2557232554 is a deficient number, since it is larger than the sum of its proper divisors (1278616280).

2557232554 is a wasteful number, since it uses less digits than its factorization.

2557232554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278616279.

The product of its digits is 420000, while the sum is 40.

The square root of 2557232554 is about 50569.0869405411. The cubic root of 2557232554 is about 1367.4876352200.

The spelling of 2557232554 in words is "two billion, five hundred fifty-seven million, two hundred thirty-two thousand, five hundred fifty-four".