15402245051 has 4 divisors (see below), whose sum is σ = 15442884600. Its totient is φ = 15361605504.

The previous prime is 15402245017. The next prime is 15402245069. The reversal of 15402245051 is 15054220451.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15402245051 is a prime.

It is a super-2 number, since 2×15402245051² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15402241051) 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, 20319206 + ... + 20319963.

It is an arithmetic number, because the mean of its divisors is an integer number (3860721150).

Almost surely, 2^15402245051 is an apocalyptic number.

15402245051 is a deficient number, since it is larger than the sum of its proper divisors (40639549).

15402245051 is an equidigital number, since it uses as much as digits as its factorization.

15402245051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40639548.

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 15402245051 in words is "fifteen billion, four hundred two million, two hundred forty-five thousand, fifty-one".