15452051540 has 24 divisors (see below), whose sum is σ = 32452667520. Its totient is φ = 6180180768.

The previous prime is 15452051533. The next prime is 15452051603. The reversal of 15452051540 is 4515025451.

It is a junction number, because it is equal to n+sod(n) for n = 15452051497 and 15452051506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190409 + ... + 259151.

It is an arithmetic number, because the mean of its divisors is an integer number (1352194480).

Almost surely, 2^15452051540 is an apocalyptic number.

15452051540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15452051540 is an abundant number, since it is smaller than the sum of its proper divisors (17000615980).

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

15452051540 is a wasteful number, since it uses less digits than its factorization.

15452051540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79991 (or 79989 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

Adding to 15452051540 its reverse (4515025451), we get a palindrome (19967076991).

The spelling of 15452051540 in words is "fifteen billion, four hundred fifty-two million, fifty-one thousand, five hundred forty".