25073481 has 4 divisors (see below), whose sum is σ = 33431312. Its totient is φ = 16715652.

The previous prime is 25073479. The next prime is 25073527. The reversal of 25073481 is 18437052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25073481 - 2¹ = 25073479 is a prime.

It is a super-2 number, since 2×25073481² = 1257358898914722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25073401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4178911 + ... + 4178916.

It is an arithmetic number, because the mean of its divisors is an integer number (8357828).

Almost surely, 2^25073481 is an apocalyptic number.

It is an amenable number.

25073481 is a deficient number, since it is larger than the sum of its proper divisors (8357831).

25073481 is an equidigital number, since it uses as much as digits as its factorization.

25073481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8357830.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 25073481 is about 5007.3427084632. The cubic root of 25073481 is about 292.6879732644.

The spelling of 25073481 in words is "twenty-five million, seventy-three thousand, four hundred eighty-one".