253041651 has 20 divisors (see below), whose sum is σ = 400237992. Its totient is φ = 158770368.

The previous prime is 253041637. The next prime is 253041671. The reversal of 253041651 is 156140352.

253041651 is a `hidden beast` number, since 2 + 5 + 3 + 0 + 4 + 1 + 651 = 666.

It is not a de Polignac number, because 253041651 - 2⁶ = 253041587 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (253041611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 90505 + ... + 93258.

Almost surely, 2^253041651 is an apocalyptic number.

253041651 is a deficient number, since it is larger than the sum of its proper divisors (147196341).

253041651 is a wasteful number, since it uses less digits than its factorization.

253041651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183792 (or 183783 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 253041651 is about 15907.2829546721. The cubic root of 253041651 is about 632.5050599771.

The spelling of 253041651 in words is "two hundred fifty-three million, forty-one thousand, six hundred fifty-one".