25142923 has 4 divisors (see below), whose sum is σ = 27077008. Its totient is φ = 23208840.

The previous prime is 25142903. The next prime is 25142927. The reversal of 25142923 is 32924152.

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 25142923 - 2¹³ = 25134731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25142891 and 25142900.

It is not an unprimeable number, because it can be changed into a prime (25142927) 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, 967023 + ... + 967048.

It is an arithmetic number, because the mean of its divisors is an integer number (6769252).

Almost surely, 2^25142923 is an apocalyptic number.

25142923 is a deficient number, since it is larger than the sum of its proper divisors (1934085).

25142923 is a wasteful number, since it uses less digits than its factorization.

25142923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934084.

The product of its digits is 4320, while the sum is 28.

The square root of 25142923 is about 5014.2719311980. The cubic root of 25142923 is about 292.9579278508.

The spelling of 25142923 in words is "twenty-five million, one hundred forty-two thousand, nine hundred twenty-three".