15235425040 has 40 divisors (see below), whose sum is σ = 38642580288. Its totient is φ = 5540154240.

The previous prime is 15235425031. The next prime is 15235425043. The reversal of 15235425040 is 4052453251.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×15235425040² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15235424993 and 15235425011.

It is not an unprimeable number, because it can be changed into a prime (15235425043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8655612 + ... + 8657371.

Almost surely, 2^15235425040 is an apocalyptic number.

15235425040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15235425040 is an abundant number, since it is smaller than the sum of its proper divisors (23407155248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15235425040 is a wasteful number, since it uses less digits than its factorization.

15235425040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17313007 (or 17313001 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 15235425040 its reverse (4052453251), we get a palindrome (19287878291).

The spelling of 15235425040 in words is "fifteen billion, two hundred thirty-five million, four hundred twenty-five thousand, forty".