71240325 has 48 divisors (see below), whose sum is σ = 130991616. Its totient is φ = 33926400.

The previous prime is 71240243. The next prime is 71240347. The reversal of 71240325 is 52304217.

It is not a de Polignac number, because 71240325 - 2¹⁷ = 71109253 is a prime.

It is a super-2 number, since 2×71240325² = 10150367812211250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71240295 and 71240304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29047 + ... + 31403.

It is an arithmetic number, because the mean of its divisors is an integer number (2728992).

Almost surely, 2^71240325 is an apocalyptic number.

71240325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71240325 is a deficient number, since it is larger than the sum of its proper divisors (59751291).

71240325 is a wasteful number, since it uses less digits than its factorization.

71240325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414 (or 2409 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 71240325 is about 8440.3983910714. The cubic root of 71240325 is about 414.5484516217.

The spelling of 71240325 in words is "seventy-one million, two hundred forty thousand, three hundred twenty-five".