2524256138 has 8 divisors (see below), whose sum is σ = 3792948132. Its totient is φ = 1259940096.

The previous prime is 2524256131. The next prime is 2524256159. The reversal of 2524256138 is 8316524252.

It is a happy number.

2524256138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2506303969 + 17952169 = 50063^2 + 4237^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2524256131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092545 + ... + 1094852.

Almost surely, 2^2524256138 is an apocalyptic number.

2524256138 is a deficient number, since it is larger than the sum of its proper divisors (1268691994).

2524256138 is a wasteful number, since it uses less digits than its factorization.

2524256138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187976.

The product of its digits is 115200, while the sum is 38.

The square root of 2524256138 is about 50241.9758568470. The cubic root of 2524256138 is about 1361.5841074984.

The spelling of 2524256138 in words is "two billion, five hundred twenty-four million, two hundred fifty-six thousand, one hundred thirty-eight".