1240254525 has 12 divisors (see below), whose sum is σ = 2050554272. Its totient is φ = 661469040.

The previous prime is 1240254523. The next prime is 1240254539. The reversal of 1240254525 is 5254520421.

It is not a de Polignac number, because 1240254525 - 2¹ = 1240254523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240254492 and 1240254501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240254523) 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, 8268289 + ... + 8268438.

Almost surely, 2^1240254525 is an apocalyptic number.

1240254525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1240254525 is a deficient number, since it is larger than the sum of its proper divisors (810299747).

1240254525 is a wasteful number, since it uses less digits than its factorization.

1240254525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16536740 (or 16536735 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 1240254525 is about 35217.2475500287. The cubic root of 1240254525 is about 1074.4105728534.

Adding to 1240254525 its reverse (5254520421), we get a palindrome (6494774946).

The spelling of 1240254525 in words is "one billion, two hundred forty million, two hundred fifty-four thousand, five hundred twenty-five".