253540994 has 24 divisors (see below), whose sum is σ = 446556240. Its totient is φ = 107640456.

The previous prime is 253540993. The next prime is 253541053. The reversal of 253540994 is 499045352.

253540994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (253540993) 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, 1604 + ... + 22575.

It is an arithmetic number, because the mean of its divisors is an integer number (18606510).

Almost surely, 2^253540994 is an apocalyptic number.

253540994 is a deficient number, since it is larger than the sum of its proper divisors (193015246).

253540994 is a wasteful number, since it uses less digits than its factorization.

253540994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24302 (or 24295 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 253540994 is about 15922.9706399277. The cubic root of 253540994 is about 632.9208406029.

The spelling of 253540994 in words is "two hundred fifty-three million, five hundred forty thousand, nine hundred ninety-four".