1900525249 has 8 divisors (see below), whose sum is σ = 2177342720. Its totient is φ = 1625036256.

The previous prime is 1900525243. The next prime is 1900525279. The reversal of 1900525249 is 9425250091.

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

It is a cyclic number.

It is not a de Polignac number, because 1900525249 - 2⁹ = 1900524737 is a prime.

It is a super-2 number, since 2×1900525249² = 7223992444173024002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1900525243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329049 + ... + 334774.

It is an arithmetic number, because the mean of its divisors is an integer number (272167840).

Almost surely, 2^1900525249 is an apocalyptic number.

It is an amenable number.

1900525249 is a deficient number, since it is larger than the sum of its proper divisors (276817471).

1900525249 is an equidigital number, since it uses as much as digits as its factorization.

1900525249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664239.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1900525249 is about 43595.0140383049. The cubic root of 1900525249 is about 1238.6764513295.

The spelling of 1900525249 in words is "one billion, nine hundred million, five hundred twenty-five thousand, two hundred forty-nine".