69981253 has 8 divisors (see below), whose sum is σ = 72962208. Its totient is φ = 67061904.

The previous prime is 69981251. The next prime is 69981271. The reversal of 69981253 is 35218996.

It is a happy number.

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 69981253 - 2¹ = 69981251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69981251) 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, 13075 + ... + 17632.

It is an arithmetic number, because the mean of its divisors is an integer number (9120276).

Almost surely, 2^69981253 is an apocalyptic number.

It is an amenable number.

69981253 is a deficient number, since it is larger than the sum of its proper divisors (2980955).

69981253 is a wasteful number, since it uses less digits than its factorization.

69981253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30803.

The product of its digits is 116640, while the sum is 43.

The square root of 69981253 is about 8365.4798427825. The cubic root of 69981253 is about 412.0917353933.

The spelling of 69981253 in words is "sixty-nine million, nine hundred eighty-one thousand, two hundred fifty-three".