1925064587 has 12 divisors (see below), whose sum is σ = 1987302240. Its totient is φ = 1863775008.

The previous prime is 1925064577. The next prime is 1925064599. The reversal of 1925064587 is 7854605291.

It is a happy number.

It is not a de Polignac number, because 1925064587 - 2¹² = 1925060491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1925064577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3140093 + ... + 3140705.

It is an arithmetic number, because the mean of its divisors is an integer number (165608520).

Almost surely, 2^1925064587 is an apocalyptic number.

1925064587 is a deficient number, since it is larger than the sum of its proper divisors (62237653).

1925064587 is an frugal number, since it uses more digits than its factorization.

1925064587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 1925064587 is about 43875.5579679621. The cubic root of 1925064587 is about 1243.9848796510.

The spelling of 1925064587 in words is "one billion, nine hundred twenty-five million, sixty-four thousand, five hundred eighty-seven".