1525234545 has 48 divisors (see below), whose sum is σ = 2694483792. Its totient is φ = 797921280.

The previous prime is 1525234537. The next prime is 1525234549. The reversal of 1525234545 is 5454325251.

1525234545 is a `hidden beast` number, since 1 + 52 + 523 + 45 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 474891264 + 1050343281 = 21792^2 + 32409^2 .

It is not a de Polignac number, because 1525234545 - 2³ = 1525234537 is a prime.

It is a super-2 number, since 2×1525234545² = 4652680834522714050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1525234549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1627317 + ... + 1628253.

It is an arithmetic number, because the mean of its divisors is an integer number (56135079).

Almost surely, 2^1525234545 is an apocalyptic number.

1525234545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1525234545 is a deficient number, since it is larger than the sum of its proper divisors (1169249247).

1525234545 is a wasteful number, since it uses less digits than its factorization.

1525234545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1599 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 1525234545 is about 39054.2513050756. The cubic root of 1525234545 is about 1151.0977658770.

Adding to 1525234545 its reverse (5454325251), we get a palindrome (6979559796).

The spelling of 1525234545 in words is "one billion, five hundred twenty-five million, two hundred thirty-four thousand, five hundred forty-five".