2525420416 has 64 divisors (see below), whose sum is σ = 5360140800. Its totient is φ = 1181744640.

The previous prime is 2525420411. The next prime is 2525420477. The reversal of 2525420416 is 6140245252.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×2525420416² = 12755496555099226112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525420411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195601 + ... + 208111.

It is an arithmetic number, because the mean of its divisors is an integer number (83752200).

Almost surely, 2^2525420416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2525420416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2680070400).

2525420416 is an abundant number, since it is smaller than the sum of its proper divisors (2834720384).

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

2525420416 is a wasteful number, since it uses less digits than its factorization.

2525420416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12627 (or 12615 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 2525420416 is about 50253.5612270414. The cubic root of 2525420416 is about 1361.7934125597.

Adding to 2525420416 its reverse (6140245252), we get a palindrome (8665665668).

The spelling of 2525420416 in words is "two billion, five hundred twenty-five million, four hundred twenty thousand, four hundred sixteen".