25277983 has 4 divisors (see below), whose sum is σ = 25296408. Its totient is φ = 25259560.

The previous prime is 25277971. The next prime is 25278049. The reversal of 25277983 is 38977252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25277983 - 2¹⁷ = 25146911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25277933) 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 3 ways as a sum of consecutive naturals, for example, 6973 + ... + 9958.

It is an arithmetic number, because the mean of its divisors is an integer number (6324102).

Almost surely, 2^25277983 is an apocalyptic number.

25277983 is a deficient number, since it is larger than the sum of its proper divisors (18425).

25277983 is a wasteful number, since it uses less digits than its factorization.

25277983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18424.

The product of its digits is 211680, while the sum is 43.

The square root of 25277983 is about 5027.7214521093. The cubic root of 25277983 is about 293.4815511564.

The spelling of 25277983 in words is "twenty-five million, two hundred seventy-seven thousand, nine hundred eighty-three".