15535005501 has 16 divisors (see below), whose sum is σ = 21936524544. Its totient is φ = 9745342464.

The previous prime is 15535005487. The next prime is 15535005509. The reversal of 15535005501 is 10550053551.

It is not a de Polignac number, because 15535005501 - 2⁷ = 15535005373 is a prime.

It is a super-2 number, since 2×15535005501² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15535005509) 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, 224140 + ... + 285146.

It is an arithmetic number, because the mean of its divisors is an integer number (1371032784).

Almost surely, 2^15535005501 is an apocalyptic number.

It is an amenable number.

15535005501 is a deficient number, since it is larger than the sum of its proper divisors (6401519043).

15535005501 is a wasteful number, since it uses less digits than its factorization.

15535005501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66020.

The product of its (nonzero) digits is 9375, while the sum is 30.

The spelling of 15535005501 in words is "fifteen billion, five hundred thirty-five million, five thousand, five hundred one".