15042532513 has 4 divisors (see below), whose sum is σ = 15138344980. Its totient is φ = 14946720048.

The previous prime is 15042532507. The next prime is 15042532523. The reversal of 15042532513 is 31523524051.

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 9799614049 + 5242918464 = 98993^2 + 72408^2 .

It is a cyclic number.

It is not a de Polignac number, because 15042532513 - 2²⁹ = 14505661601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15042532523) 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, 47905998 + ... + 47906311.

It is an arithmetic number, because the mean of its divisors is an integer number (3784586245).

Almost surely, 2^15042532513 is an apocalyptic number.

It is an amenable number.

15042532513 is a deficient number, since it is larger than the sum of its proper divisors (95812467).

15042532513 is an equidigital number, since it uses as much as digits as its factorization.

15042532513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95812466.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 15042532513 in words is "fifteen billion, forty-two million, five hundred thirty-two thousand, five hundred thirteen".