15500403053 has 16 divisors (see below), whose sum is σ = 16964640000. Its totient is φ = 14106157632.

The previous prime is 15500403043. The next prime is 15500403071. The reversal of 15500403053 is 35030400551.

It is a cyclic number.

It is not a de Polignac number, because 15500403053 - 2¹² = 15500398957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15500403043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37148 + ... + 179946.

It is an arithmetic number, because the mean of its divisors is an integer number (1060290000).

Almost surely, 2^15500403053 is an apocalyptic number.

It is an amenable number.

15500403053 is a deficient number, since it is larger than the sum of its proper divisors (1464236947).

15500403053 is a wasteful number, since it uses less digits than its factorization.

15500403053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143044.

The product of its (nonzero) digits is 4500, while the sum is 26.

The spelling of 15500403053 in words is "fifteen billion, five hundred million, four hundred three thousand, fifty-three".