2536785225 has 72 divisors (see below), whose sum is σ = 4944174872. Its totient is φ = 1235865600.

The previous prime is 2536785193. The next prime is 2536785233. The reversal of 2536785225 is 5225876352.

2536785225 is a `hidden beast` number, since 2 + 53 + 6 + 78 + 522 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 989228304 + 1547556921 = 31452^2 + 39339^2 .

It is not a de Polignac number, because 2536785225 - 2⁵ = 2536785193 is a prime.

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

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, 279255 + ... + 288195.

Almost surely, 2^2536785225 is an apocalyptic number.

2536785225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2536785225 is a deficient number, since it is larger than the sum of its proper divisors (2407389647).

2536785225 is a wasteful number, since it uses less digits than its factorization.

2536785225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9067 (or 9059 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 2536785225 is about 50366.5089618091. The cubic root of 2536785225 is about 1363.8331210330.

It can be divided in two parts, 25367 and 85225, that added together give a cube (110592 = 48³).

The spelling of 2536785225 in words is "two billion, five hundred thirty-six million, seven hundred eighty-five thousand, two hundred twenty-five".