253761849 has 16 divisors (see below), whose sum is σ = 410120640. Its totient is φ = 153794880.

The previous prime is 253761841. The next prime is 253761857. The reversal of 253761849 is 948167352.

253761849 is a `hidden beast` number, since 25 + 3 + 7 + 618 + 4 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (253761841) and next prime (253761857).

It is not a de Polignac number, because 253761849 - 2³ = 253761841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253761841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426912 + ... + 427505.

It is an arithmetic number, because the mean of its divisors is an integer number (25632540).

Almost surely, 2^253761849 is an apocalyptic number.

It is an amenable number.

253761849 is a deficient number, since it is larger than the sum of its proper divisors (156358791).

253761849 is a wasteful number, since it uses less digits than its factorization.

253761849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854437 (or 854431 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 253761849 is about 15929.9042370003. The cubic root of 253761849 is about 633.1045625880.

It can be divided in two parts, 25376 and 1849, that added together give a square (27225 = 165²).

The spelling of 253761849 in words is "two hundred fifty-three million, seven hundred sixty-one thousand, eight hundred forty-nine".