40502053 has 4 divisors (see below), whose sum is σ = 42633760. Its totient is φ = 38370348.

The previous prime is 40502039. The next prime is 40502069. The reversal of 40502053 is 35020504.

It is a happy number.

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 not a de Polignac number, because 40502053 - 2⁹ = 40501541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 2131687 = 40502053 / (4 + 0 + 5 + 0 + 2 + 0 + 5 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40502053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40502003) 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, 1065825 + ... + 1065862.

It is an arithmetic number, because the mean of its divisors is an integer number (10658440).

Almost surely, 2^40502053 is an apocalyptic number.

It is an amenable number.

40502053 is a deficient number, since it is larger than the sum of its proper divisors (2131707).

40502053 is a wasteful number, since it uses less digits than its factorization.

40502053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131706.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 40502053 is about 6364.1223275484. The cubic root of 40502053 is about 343.4200753799.

Adding to 40502053 its reverse (35020504), we get a palindrome (75522557).

The spelling of 40502053 in words is "forty million, five hundred two thousand, fifty-three".