2405421525 has 48 divisors (see below), whose sum is σ = 4323098304. Its totient is φ = 1173089280.

The previous prime is 2405421517. The next prime is 2405421547. The reversal of 2405421525 is 5251245042.

It is not a de Polignac number, because 2405421525 - 2³ = 2405421517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2405421492 and 2405421501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92797 + ... + 115853.

It is an arithmetic number, because the mean of its divisors is an integer number (90064548).

Almost surely, 2^2405421525 is an apocalyptic number.

2405421525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2405421525 is a deficient number, since it is larger than the sum of its proper divisors (1917676779).

2405421525 is a wasteful number, since it uses less digits than its factorization.

2405421525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23190 (or 23185 counting only the distinct ones).

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

The square root of 2405421525 is about 49045.0968497362. The cubic root of 2405421525 is about 1339.8732940639.

Adding to 2405421525 its reverse (5251245042), we get a palindrome (7656666567).

The spelling of 2405421525 in words is "two billion, four hundred five million, four hundred twenty-one thousand, five hundred twenty-five".