2545402851 has 6 divisors (see below), whose sum is σ = 3676693020. Its totient is φ = 1696935228.

The previous prime is 2545402837. The next prime is 2545402859. The reversal of 2545402851 is 1582045452.

2545402851 is a `hidden beast` number, since 2 + 545 + 40 + 28 + 51 = 666.

It is not a de Polignac number, because 2545402851 - 2¹⁷ = 2545271779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2545402859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141411261 + ... + 141411278.

It is an arithmetic number, because the mean of its divisors is an integer number (612782170).

Almost surely, 2^2545402851 is an apocalyptic number.

2545402851 is a deficient number, since it is larger than the sum of its proper divisors (1131290169).

2545402851 is a wasteful number, since it uses less digits than its factorization.

2545402851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282822545 (or 282822542 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The square root of 2545402851 is about 50451.9856001724. The cubic root of 2545402851 is about 1365.3757191387.

The spelling of 2545402851 in words is "two billion, five hundred forty-five million, four hundred two thousand, eight hundred fifty-one".