73025431 has 2 divisors, whose sum is σ = 73025432. Its totient is φ = 73025430.

The previous prime is 73025423. The next prime is 73025441. The reversal of 73025431 is 13452037.

It is a weak prime.

It is an emirp because it is prime and its reverse (13452037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73025431 - 2³ = 73025423 is a prime.

It is a super-2 number, since 2×73025431² = 10665427145471522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73025396 and 73025405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73025411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36512715 + 36512716.

It is an arithmetic number, because the mean of its divisors is an integer number (36512716).

Almost surely, 2^73025431 is an apocalyptic number.

73025431 is a deficient number, since it is larger than the sum of its proper divisors (1).

73025431 is an equidigital number, since it uses as much as digits as its factorization.

73025431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 73025431 is about 8545.4918524331. The cubic root of 73025431 is about 417.9824458643.

Adding to 73025431 its reverse (13452037), we get a palindrome (86477468).

The spelling of 73025431 in words is "seventy-three million, twenty-five thousand, four hundred thirty-one".