421268525 has 24 divisors (see below), whose sum is σ = 529489920. Its totient is φ = 332458560.

The previous prime is 421268521. The next prime is 421268531. The reversal of 421268525 is 525862124.

It is not a de Polignac number, because 421268525 - 2² = 421268521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421268521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 879236 + ... + 879714.

It is an arithmetic number, because the mean of its divisors is an integer number (22062080).

Almost surely, 2^421268525 is an apocalyptic number.

It is an amenable number.

421268525 is a deficient number, since it is larger than the sum of its proper divisors (108221395).

421268525 is a wasteful number, since it uses less digits than its factorization.

421268525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 888 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 421268525 is about 20524.8270394661. The cubic root of 421268525 is about 749.6404350524.

The spelling of 421268525 in words is "four hundred twenty-one million, two hundred sixty-eight thousand, five hundred twenty-five".