15425252450 has 48 divisors (see below), whose sum is σ = 30052826496. Its totient is φ = 5879280000.

The previous prime is 15425252441. The next prime is 15425252501. The reversal of 15425252450 is 5425252451.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 15425252450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276950 + ... + 327950.

It is an arithmetic number, because the mean of its divisors is an integer number (626100552).

Almost surely, 2^15425252450 is an apocalyptic number.

15425252450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15425252450 is a deficient number, since it is larger than the sum of its proper divisors (14627574046).

15425252450 is a wasteful number, since it uses less digits than its factorization.

15425252450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51299 (or 51294 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

Subtracting from 15425252450 its reverse (5425252451), we obtain a palindrome (9999999999).

The spelling of 15425252450 in words is "fifteen billion, four hundred twenty-five million, two hundred fifty-two thousand, four hundred fifty".