15045532501 has 4 divisors (see below), whose sum is σ = 15699686112. Its totient is φ = 14391378892.

The previous prime is 15045532459. The next prime is 15045532517. The reversal of 15045532501 is 10523554051.

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 15045532501 - 2⁷ = 15045532373 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 (15045532001) 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, 327076771 + ... + 327076816.

It is an arithmetic number, because the mean of its divisors is an integer number (3924921528).

Almost surely, 2^15045532501 is an apocalyptic number.

It is an amenable number.

15045532501 is a deficient number, since it is larger than the sum of its proper divisors (654153611).

15045532501 is an equidigital number, since it uses as much as digits as its factorization.

15045532501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654153610.

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 15045532501 in words is "fifteen billion, forty-five million, five hundred thirty-two thousand, five hundred one".