22775801 has 6 divisors (see below), whose sum is σ = 24194670. Its totient is φ = 21435776.

The previous prime is 22775789. The next prime is 22775807. The reversal of 22775801 is 10857722.

It can be written as a sum of positive squares in 3 ways, for example, as 2027776 + 20748025 = 1424^2 + 4555^2 .

It is not a de Polignac number, because 22775801 - 2¹⁴ = 22759417 is a prime.

It is a super-2 number, since 2×22775801² = 1037474222383202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22775807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39116 + ... + 39693.

It is an arithmetic number, because the mean of its divisors is an integer number (4032445).

Almost surely, 2^22775801 is an apocalyptic number.

It is an amenable number.

22775801 is a deficient number, since it is larger than the sum of its proper divisors (1418869).

22775801 is an equidigital number, since it uses as much as digits as its factorization.

22775801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78843 (or 78826 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 22775801 is about 4772.3999203755. The cubic root of 22775801 is about 283.4596325811.

The spelling of 22775801 in words is "twenty-two million, seven hundred seventy-five thousand, eight hundred one".