2238861525 has 12 divisors (see below), whose sum is σ = 3701584512. Its totient is φ = 1194059440.

The previous prime is 2238861479. The next prime is 2238861533. The reversal of 2238861525 is 5251688322.

It is a happy number.

It is not a de Polignac number, because 2238861525 - 2¹⁷ = 2238730453 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14925669 + ... + 14925818.

It is an arithmetic number, because the mean of its divisors is an integer number (308465376).

Almost surely, 2^2238861525 is an apocalyptic number.

2238861525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2238861525 is a deficient number, since it is larger than the sum of its proper divisors (1462722987).

2238861525 is a wasteful number, since it uses less digits than its factorization.

2238861525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29851500 (or 29851495 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 2238861525 is about 47316.6093988147. The cubic root of 2238861525 is about 1308.2048182239.

The spelling of 2238861525 in words is "two billion, two hundred thirty-eight million, eight hundred sixty-one thousand, five hundred twenty-five".