2506477851 has 20 divisors (see below), whose sum is σ = 3769392000. Its totient is φ = 1659762576.

The previous prime is 2506477847. The next prime is 2506477867. The reversal of 2506477851 is 1587746052.

2506477851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2506477851 - 2² = 2506477847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2506477797 and 2506477806.

It is not an unprimeable number, because it can be changed into a prime (2506477871) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 91771 + ... + 115908.

It is an arithmetic number, because the mean of its divisors is an integer number (188469600).

Almost surely, 2^2506477851 is an apocalyptic number.

2506477851 is a deficient number, since it is larger than the sum of its proper divisors (1262914149).

2506477851 is a wasteful number, since it uses less digits than its factorization.

2506477851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207840 (or 207831 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 2506477851 is about 50064.7366017240. The cubic root of 2506477851 is about 1358.3800367982.

The spelling of 2506477851 in words is "two billion, five hundred six million, four hundred seventy-seven thousand, eight hundred fifty-one".