15742400053 has 4 divisors (see below), whose sum is σ = 15769683820. Its totient is φ = 15715116288.

The previous prime is 15742400033. The next prime is 15742400059. The reversal of 15742400053 is 35000424751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14917446769 + 824953284 = 122137^2 + 28722^2 .

It is a cyclic number.

It is not a de Polignac number, because 15742400053 - 2⁵ = 15742400021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15742399988 and 15742400024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15742400059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13641018 + ... + 13642171.

It is an arithmetic number, because the mean of its divisors is an integer number (3942420955).

Almost surely, 2^15742400053 is an apocalyptic number.

It is an amenable number.

15742400053 is a deficient number, since it is larger than the sum of its proper divisors (27283767).

15742400053 is an equidigital number, since it uses as much as digits as its factorization.

15742400053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27283766.

The product of its (nonzero) digits is 16800, while the sum is 31.

The spelling of 15742400053 in words is "fifteen billion, seven hundred forty-two million, four hundred thousand, fifty-three".