71254650 has 48 divisors (see below), whose sum is σ = 187113024. Its totient is φ = 17882880.

The previous prime is 71254627. The next prime is 71254657. The reversal of 71254650 is 5645217.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (71254657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11422 + ... + 16521.

It is an arithmetic number, because the mean of its divisors is an integer number (3898188).

Almost surely, 2^71254650 is an apocalyptic number.

71254650 is an abundant number, since it is smaller than the sum of its proper divisors (115858374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71254650 is a wasteful number, since it uses less digits than its factorization.

71254650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27975 (or 27970 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 71254650 is about 8441.2469458013. The cubic root of 71254650 is about 414.5762355515.

Adding to 71254650 its reverse (5645217), we get a palindrome (76899867).

The spelling of 71254650 in words is "seventy-one million, two hundred fifty-four thousand, six hundred fifty".