1525995345 has 32 divisors (see below), whose sum is σ = 2843050752. Its totient is φ = 684433152.

The previous prime is 1525995323. The next prime is 1525995377. The reversal of 1525995345 is 5435995251.

It is not a de Polignac number, because 1525995345 - 2⁶ = 1525995281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1525995294 and 1525995303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131542 + ... + 142671.

It is an arithmetic number, because the mean of its divisors is an integer number (88845336).

Almost surely, 2^1525995345 is an apocalyptic number.

1525995345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1525995345 is a deficient number, since it is larger than the sum of its proper divisors (1317055407).

1525995345 is a wasteful number, since it uses less digits than its factorization.

1525995345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274281.

The product of its digits is 1215000, while the sum is 48.

The square root of 1525995345 is about 39063.9903875679. The cubic root of 1525995345 is about 1151.2891265242.

The spelling of 1525995345 in words is "one billion, five hundred twenty-five million, nine hundred ninety-five thousand, three hundred forty-five".