1525124442 has 32 divisors (see below), whose sum is σ = 3186708480. Its totient is φ = 485979200.

The previous prime is 1525124431. The next prime is 1525124459. The reversal of 1525124442 is 2444215251.

It is a super-2 number, since 2×1525124442² = 4652009127171622728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25818 + ... + 60965.

It is an arithmetic number, because the mean of its divisors is an integer number (99584640).

Almost surely, 2^1525124442 is an apocalyptic number.

1525124442 is an abundant number, since it is smaller than the sum of its proper divisors (1661584038).

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

1525124442 is a wasteful number, since it uses less digits than its factorization.

1525124442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86918.

The product of its digits is 12800, while the sum is 30.

The square root of 1525124442 is about 39052.8416635717. The cubic root of 1525124442 is about 1151.0700668874.

Adding to 1525124442 its reverse (2444215251), we get a palindrome (3969339693).

It can be divided in two parts, 15251 and 24442, that added together give a palindrome (39693).

The spelling of 1525124442 in words is "one billion, five hundred twenty-five million, one hundred twenty-four thousand, four hundred forty-two".