2549637225 has 72 divisors (see below), whose sum is σ = 4741214400. Its totient is φ = 1308182400.

The previous prime is 2549637199. The next prime is 2549637241. The reversal of 2549637225 is 5227369452.

2549637225 is a `hidden beast` number, since 2 + 5 + 4 + 9 + 637 + 2 + 2 + 5 = 666.

2549637225 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 2549637225 - 2⁶ = 2549637161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2472460 + ... + 2473490.

It is an arithmetic number, because the mean of its divisors is an integer number (65850200).

Almost surely, 2^2549637225 is an apocalyptic number.

2549637225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2549637225 is a deficient number, since it is larger than the sum of its proper divisors (2191577175).

2549637225 is a wasteful number, since it uses less digits than its factorization.

2549637225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455 (or 1447 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 2549637225 is about 50493.9325562983. The cubic root of 2549637225 is about 1366.1324177600.

The spelling of 2549637225 in words is "two billion, five hundred forty-nine million, six hundred thirty-seven thousand, two hundred twenty-five".