15420053 has 4 divisors (see below), whose sum is σ = 16821888. Its totient is φ = 14018220.

The previous prime is 15420049. The next prime is 15420061. The reversal of 15420053 is 35002451.

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 15420053 - 2² = 15420049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15420043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700901 + ... + 700922.

It is an arithmetic number, because the mean of its divisors is an integer number (4205472).

Almost surely, 2^15420053 is an apocalyptic number.

It is an amenable number.

15420053 is a deficient number, since it is larger than the sum of its proper divisors (1401835).

15420053 is a wasteful number, since it uses less digits than its factorization.

15420053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401834.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 15420053 is about 3926.8375316532. The cubic root of 15420053 is about 248.9021351619.

The spelling of 15420053 in words is "fifteen million, four hundred twenty thousand, fifty-three".