38525357506 has 16 divisors (see below), whose sum is σ = 59451596568. Its totient is φ = 18712192000.

The previous prime is 38525357473. The next prime is 38525357509. The reversal of 38525357506 is 60575352583.

It can be written as a sum of positive squares in 4 ways, for example, as 31485308481 + 7040049025 = 177441^2 + 83905^2 .

It is a super-2 number, since 2×38525357506² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38525357506.

It is not an unprimeable number, because it can be changed into a prime (38525357509) 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, 989095 + ... + 1027306.

Almost surely, 2^38525357506 is an apocalyptic number.

38525357506 is a deficient number, since it is larger than the sum of its proper divisors (20926239062).

38525357506 is a wasteful number, since it uses less digits than its factorization.

38525357506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016677.

The product of its (nonzero) digits is 3780000, while the sum is 49.

The spelling of 38525357506 in words is "thirty-eight billion, five hundred twenty-five million, three hundred fifty-seven thousand, five hundred six".