25551192 has 64 divisors (see below), whose sum is σ = 67138560. Its totient is φ = 8092800.

The previous prime is 25551191. The next prime is 25551193. The reversal of 25551192 is 29115552.

It is an interprime number because it is at equal distance from previous prime (25551191) and next prime (25551193).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25551191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45103 + ... + 45665.

It is an arithmetic number, because the mean of its divisors is an integer number (1049040).

Almost surely, 2^25551192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25551192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33569280).

25551192 is an abundant number, since it is smaller than the sum of its proper divisors (41587368).

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

25551192 is a wasteful number, since it uses less digits than its factorization.

25551192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 660 counting only the distinct ones).

The product of its digits is 4500, while the sum is 30.

The square root of 25551192 is about 5054.8186911105. The cubic root of 25551192 is about 294.5350984290.

The spelling of 25551192 in words is "twenty-five million, five hundred fifty-one thousand, one hundred ninety-two".