15525455242 has 8 divisors (see below), whose sum is σ = 25405290432. Its totient is φ = 7057025100.

The previous prime is 15525455227. The next prime is 15525455249. The reversal of 15525455242 is 24255452551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 15525455195 and 15525455204.

It is not an unprimeable number, because it can be changed into a prime (15525455249) 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, 352851234 + ... + 352851277.

It is an arithmetic number, because the mean of its divisors is an integer number (3175661304).

Almost surely, 2^15525455242 is an apocalyptic number.

15525455242 is a deficient number, since it is larger than the sum of its proper divisors (9879835190).

15525455242 is a wasteful number, since it uses less digits than its factorization.

15525455242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705702524.

The product of its digits is 400000, while the sum is 40.

The spelling of 15525455242 in words is "fifteen billion, five hundred twenty-five million, four hundred fifty-five thousand, two hundred forty-two".