423113397525 has 384 divisors, whose sum is σ = 1030547374080. Its totient is φ = 165255552000.

The previous prime is 423113397521. The next prime is 423113397529. The reversal of 423113397525 is 525793311324.

423113397525 is a `hidden beast` number, since 4 + 2 + 3 + 1 + 1 + 33 + 97 + 525 = 666.

It is an interprime number because it is at equal distance from previous prime (423113397521) and next prime (423113397529).

It is not a de Polignac number, because 423113397525 - 2² = 423113397521 is a prime.

It is a super-2 number, since 2×423113397525² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423113397521) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 43791195 + ... + 43800855.

It is an arithmetic number, because the mean of its divisors is an integer number (2683717120).

Almost surely, 2^423113397525 is an apocalyptic number.

423113397525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

423113397525 is an abundant number, since it is smaller than the sum of its proper divisors (607433976555).

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

423113397525 is a wasteful number, since it uses less digits than its factorization.

423113397525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9754 (or 9743 counting only the distinct ones).

The product of its digits is 680400, while the sum is 45.

The spelling of 423113397525 in words is "four hundred twenty-three billion, one hundred thirteen million, three hundred ninety-seven thousand, five hundred twenty-five".