1525216500064 has 48 divisors (see below), whose sum is σ = 3128661622800. Its totient is φ = 731014147584.

The previous prime is 1525216500061. The next prime is 1525216500133. The reversal of 1525216500064 is 4600056125251.

It is a junction number, because it is equal to n+sod(n) for n = 1525216499996 and 1525216500032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525216500061) 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, 5783067 + ... + 6041050.

It is an arithmetic number, because the mean of its divisors is an integer number (65180450475).

Almost surely, 2^{1525216500064} is an apocalyptic number.

It is an amenable number.

1525216500064 is an abundant number, since it is smaller than the sum of its proper divisors (1603445122736).

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

1525216500064 is a wasteful number, since it uses less digits than its factorization.

1525216500064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11824295 (or 11824287 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 1525216500064 in words is "one trillion, five hundred twenty-five billion, two hundred sixteen million, five hundred thousand, sixty-four".