425254452525 has 72 divisors (see below), whose sum is σ = 889010313984. Its totient is φ = 190265788800.

The previous prime is 425254452479. The next prime is 425254452541. The reversal of 425254452525 is 525254452524.

425254452525 is a `hidden beast` number, since 4 + 2 + 5 + 2 + 544 + 52 + 52 + 5 = 666.

It is not a de Polignac number, because 425254452525 - 2⁶ = 425254452461 is a prime.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2798346 + ... + 2946395.

It is an arithmetic number, because the mean of its divisors is an integer number (12347365472).

Almost surely, 2^425254452525 is an apocalyptic number.

425254452525 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

425254452525 is an abundant number, since it is smaller than the sum of its proper divisors (463755861459).

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

425254452525 is a wasteful number, since it uses less digits than its factorization.

425254452525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744811 (or 5744803 counting only the distinct ones).

The product of its digits is 3200000, while the sum is 45.

Subtracting 425254452525 from its reverse (525254452524), we obtain a palindrome (99999999999).

The spelling of 425254452525 in words is "four hundred twenty-five billion, two hundred fifty-four million, four hundred fifty-two thousand, five hundred twenty-five".