25401933 has 12 divisors (see below), whose sum is σ = 36806848. Its totient is φ = 16881480.

The previous prime is 25401923. The next prime is 25401947. The reversal of 25401933 is 33910452.

It is not a de Polignac number, because 25401933 - 2¹² = 25397837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25401897 and 25401906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25401923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1285 + ... + 7242.

Almost surely, 2^25401933 is an apocalyptic number.

It is an amenable number.

25401933 is a deficient number, since it is larger than the sum of its proper divisors (11404915).

25401933 is a wasteful number, since it uses less digits than its factorization.

25401933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8864 (or 8861 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 25401933 is about 5040.0330356060. The cubic root of 25401933 is about 293.9604625438.

The spelling of 25401933 in words is "twenty-five million, four hundred one thousand, nine hundred thirty-three".