25220043 has 18 divisors (see below), whose sum is σ = 37361532. Its totient is φ = 16393440.

The previous prime is 25220033. The next prime is 25220057. The reversal of 25220043 is 34002252.

It is not a de Polignac number, because 25220043 - 2⁶ = 25219979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25219998 and 25220025.

It is not an unprimeable number, because it can be changed into a prime (25220033) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14296 + ... + 15962.

Almost surely, 2^25220043 is an apocalyptic number.

25220043 is a deficient number, since it is larger than the sum of its proper divisors (12141489).

25220043 is a wasteful number, since it uses less digits than its factorization.

25220043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755 (or 1711 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 25220043 is about 5021.9560929980. The cubic root of 25220043 is about 293.2571486321.

Adding to 25220043 its reverse (34002252), we get a palindrome (59222295).

The spelling of 25220043 in words is "twenty-five million, two hundred twenty thousand, forty-three".