15542054452 has 6 divisors (see below), whose sum is σ = 27198595298. Its totient is φ = 7771027224.

The previous prime is 15542054441. The next prime is 15542054467. The reversal of 15542054452 is 25445024551.

It can be written as a sum of positive squares in only one way, i.e., 12074493456 + 3467560996 = 109884^2 + 58886^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1942756803 + ... + 1942756810.

Almost surely, 2^15542054452 is an apocalyptic number.

It is an amenable number.

15542054452 is a deficient number, since it is larger than the sum of its proper divisors (11656540846).

15542054452 is a wasteful number, since it uses less digits than its factorization.

15542054452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885513617 (or 3885513615 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 15542054452 in words is "fifteen billion, five hundred forty-two million, fifty-four thousand, four hundred fifty-two".