40100253 has 4 divisors (see below), whose sum is σ = 53467008. Its totient is φ = 26733500.

The previous prime is 40100239. The next prime is 40100257. The reversal of 40100253 is 35200104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40100253 - 2¹⁰ = 40099229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40100257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6683373 + ... + 6683378.

It is an arithmetic number, because the mean of its divisors is an integer number (13366752).

Almost surely, 2^40100253 is an apocalyptic number.

It is an amenable number.

40100253 is a deficient number, since it is larger than the sum of its proper divisors (13366755).

40100253 is a wasteful number, since it uses less digits than its factorization.

40100253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13366754.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 40100253 is about 6332.4760560147. The cubic root of 40100253 is about 342.2806679982.

Adding to 40100253 its reverse (35200104), we get a palindrome (75300357).

The spelling of 40100253 in words is "forty million, one hundred thousand, two hundred fifty-three".