2425151521 has 6 divisors (see below), whose sum is σ = 2626051830. Its totient is φ = 2238601248.

The previous prime is 2425151503. The next prime is 2425151557. The reversal of 2425151521 is 1251515242.

It can be written as a sum of positive squares in 3 ways, for example, as 672400 + 2424479121 = 820^2 + 49239^2 .

It is not a de Polignac number, because 2425151521 - 2⁵ = 2425151489 is a prime.

It is a super-2 number, since 2×2425151521² = 11762719799617226882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2425151521.

It is not an unprimeable number, because it can be changed into a prime (2425151591) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7174836 + ... + 7175173.

It is an arithmetic number, because the mean of its divisors is an integer number (437675305).

Almost surely, 2^2425151521 is an apocalyptic number.

It is an amenable number.

2425151521 is a deficient number, since it is larger than the sum of its proper divisors (200900309).

2425151521 is a wasteful number, since it uses less digits than its factorization.

2425151521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14350035 (or 14350022 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The square root of 2425151521 is about 49245.8274476122. The cubic root of 2425151521 is about 1343.5266723689.

Adding to 2425151521 its reverse (1251515242), we get a palindrome (3676666763).

It can be divided in two parts, 242515 and 1521, that added together give a square (244036 = 494²).

The spelling of 2425151521 in words is "two billion, four hundred twenty-five million, one hundred fifty-one thousand, five hundred twenty-one".