73075815425 has 24 divisors (see below), whose sum is σ = 92351079480. Its totient is φ = 57350592000.

The previous prime is 73075815419. The next prime is 73075815433. The reversal of 73075815425 is 52451857037.

It can be written as a sum of positive squares in 12 ways, for example, as 387341761 + 72688473664 = 19681^2 + 269608^2 .

It is not a de Polignac number, because 73075815425 - 2²⁴ = 73059038209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73075815425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142469 + ... + 407981.

It is an arithmetic number, because the mean of its divisors is an integer number (3847961645).

Almost surely, 2^73075815425 is an apocalyptic number.

It is an amenable number.

73075815425 is a deficient number, since it is larger than the sum of its proper divisors (19275264055).

73075815425 is a wasteful number, since it uses less digits than its factorization.

73075815425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265733 (or 265728 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 47.

The spelling of 73075815425 in words is "seventy-three billion, seventy-five million, eight hundred fifteen thousand, four hundred twenty-five".