2528377551 has 32 divisors (see below), whose sum is σ = 4288166400. Its totient is φ = 1442318400.

The previous prime is 2528377517. The next prime is 2528377559. The reversal of 2528377551 is 1557738252.

2528377551 is a `hidden beast` number, since 2 + 5 + 28 + 3 + 77 + 551 = 666.

It is not a de Polignac number, because 2528377551 - 2⁶ = 2528377487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2528377497 and 2528377506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528377559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102460 + ... + 124718.

It is an arithmetic number, because the mean of its divisors is an integer number (134005200).

Almost surely, 2^2528377551 is an apocalyptic number.

2528377551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2528377551 is a deficient number, since it is larger than the sum of its proper divisors (1759788849).

2528377551 is a wasteful number, since it uses less digits than its factorization.

2528377551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22876 (or 22870 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 2528377551 is about 50282.9747628360. The cubic root of 2528377551 is about 1362.3247348106.

The spelling of 2528377551 in words is "two billion, five hundred twenty-eight million, three hundred seventy-seven thousand, five hundred fifty-one".