1525242031 has 2 divisors, whose sum is σ = 1525242032. Its totient is φ = 1525242030.

The previous prime is 1525242007. The next prime is 1525242049. The reversal of 1525242031 is 1302425251.

It is a strong prime.

It is an emirp because it is prime and its reverse (1302425251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1525242031 - 2²⁵ = 1491687599 is a prime.

It is a super-2 number, since 2×1525242031² = 4652726506258009922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1525241987 and 1525242005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525245031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762621015 + 762621016.

It is an arithmetic number, because the mean of its divisors is an integer number (762621016).

Almost surely, 2^1525242031 is an apocalyptic number.

1525242031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525242031 is an equidigital number, since it uses as much as digits as its factorization.

1525242031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1525242031 is about 39054.3471459964. The cubic root of 1525242031 is about 1151.0996491073.

Adding to 1525242031 its reverse (1302425251), we get a palindrome (2827667282).

The spelling of 1525242031 in words is "one billion, five hundred twenty-five million, two hundred forty-two thousand, thirty-one".