253764651 has 8 divisors (see below), whose sum is σ = 386689024. Its totient is φ = 145008360.

The previous prime is 253764631. The next prime is 253764653. The reversal of 253764651 is 156467352.

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

It is not a de Polignac number, because 253764651 - 2¹¹ = 253762603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253764653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6041995 + ... + 6042036.

It is an arithmetic number, because the mean of its divisors is an integer number (48336128).

Almost surely, 2^253764651 is an apocalyptic number.

253764651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

253764651 is a deficient number, since it is larger than the sum of its proper divisors (132924373).

253764651 is a wasteful number, since it uses less digits than its factorization.

253764651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12084041.

The product of its digits is 151200, while the sum is 39.

The square root of 253764651 is about 15929.9921845555. The cubic root of 253764651 is about 633.1068927944.

The spelling of 253764651 in words is "two hundred fifty-three million, seven hundred sixty-four thousand, six hundred fifty-one".