70251253 has 12 divisors (see below), whose sum is σ = 73554208. Its totient is φ = 67087440.

The previous prime is 70251221. The next prime is 70251281. The reversal of 70251253 is 35215207.

It is not a de Polignac number, because 70251253 - 2⁵ = 70251221 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70251953) 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 11 ways as a sum of consecutive naturals, for example, 86218 + ... + 87028.

Almost surely, 2^70251253 is an apocalyptic number.

It is an amenable number.

70251253 is a deficient number, since it is larger than the sum of its proper divisors (3302955).

70251253 is a wasteful number, since it uses less digits than its factorization.

70251253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 70251253 is about 8381.6020545001. The cubic root of 70251253 is about 412.6210294385.

The spelling of 70251253 in words is "seventy million, two hundred fifty-one thousand, two hundred fifty-three".