2622421725 has 96 divisors (see below), whose sum is σ = 5421843456. Its totient is φ = 1086566400.

The previous prime is 2622421723. The next prime is 2622421727. The reversal of 2622421725 is 5271242262.

It is an interprime number because it is at equal distance from previous prime (2622421723) and next prime (2622421727).

It is not a de Polignac number, because 2622421725 - 2¹ = 2622421723 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2622421723) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3331782 + ... + 3332568.

It is an arithmetic number, because the mean of its divisors is an integer number (56477536).

Almost surely, 2^2622421725 is an apocalyptic number.

2622421725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2622421725 is an abundant number, since it is smaller than the sum of its proper divisors (2799421731).

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

2622421725 is a wasteful number, since it uses less digits than its factorization.

2622421725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395 (or 1390 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 2622421725 is about 51209.5862607774. The cubic root of 2622421725 is about 1379.0103043566.

Adding to 2622421725 its reverse (5271242262), we get a palindrome (7893663987).

The spelling of 2622421725 in words is "two billion, six hundred twenty-two million, four hundred twenty-one thousand, seven hundred twenty-five".