71955020 has 12 divisors (see below), whose sum is σ = 151105584. Its totient is φ = 28782000.

The previous prime is 71955011. The next prime is 71955029. The reversal of 71955020 is 2055917.

It is an interprime number because it is at equal distance from previous prime (71955011) and next prime (71955029).

It is not an unprimeable number, because it can be changed into a prime (71955029) 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, 1798856 + ... + 1798895.

It is an arithmetic number, because the mean of its divisors is an integer number (12592132).

Almost surely, 2^71955020 is an apocalyptic number.

It is an amenable number.

71955020 is an abundant number, since it is smaller than the sum of its proper divisors (79150564).

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

71955020 is a wasteful number, since it uses less digits than its factorization.

71955020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597760 (or 3597758 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 71955020 is about 8482.6304882389. The cubic root of 71955020 is about 415.9301149247.

The spelling of 71955020 in words is "seventy-one million, nine hundred fifty-five thousand, twenty".