22825551 has 8 divisors (see below), whose sum is σ = 34781824. Its totient is φ = 13043160.

The previous prime is 22825547. The next prime is 22825553. The reversal of 22825551 is 15552822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22825551 - 2² = 22825547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22825553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543445 + ... + 543486.

It is an arithmetic number, because the mean of its divisors is an integer number (4347728).

Almost surely, 2^22825551 is an apocalyptic number.

22825551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22825551 is a deficient number, since it is larger than the sum of its proper divisors (11956273).

22825551 is a wasteful number, since it uses less digits than its factorization.

22825551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086941.

The product of its digits is 8000, while the sum is 30.

The square root of 22825551 is about 4777.6093394082. The cubic root of 22825551 is about 283.6658728394.

The spelling of 22825551 in words is "twenty-two million, eight hundred twenty-five thousand, five hundred fifty-one".