423777525 has 24 divisors (see below), whose sum is σ = 701889600. Its totient is φ = 225613440.

The previous prime is 423777457. The next prime is 423777583. The reversal of 423777525 is 525777324.

It is a happy number.

It is not a de Polignac number, because 423777525 - 2⁷ = 423777397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40209 + ... + 49641.

It is an arithmetic number, because the mean of its divisors is an integer number (29245400).

Almost surely, 2^423777525 is an apocalyptic number.

It is an amenable number.

423777525 is a deficient number, since it is larger than the sum of its proper divisors (278112075).

423777525 is a wasteful number, since it uses less digits than its factorization.

423777525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10045 (or 10040 counting only the distinct ones).

The product of its digits is 411600, while the sum is 42.

The square root of 423777525 is about 20585.8574025956. The cubic root of 423777525 is about 751.1257316811.

The spelling of 423777525 in words is "four hundred twenty-three million, seven hundred seventy-seven thousand, five hundred twenty-five".