70722565 has 8 divisors (see below), whose sum is σ = 84951288. Its totient is φ = 56521920.

The previous prime is 70722529. The next prime is 70722583. The reversal of 70722565 is 56522707.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 35605089 + 35117476 = 5967^2 + 5926^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70722565 - 2⁷ = 70722437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70722565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006 + ... + 11935.

It is an arithmetic number, because the mean of its divisors is an integer number (10618911).

Almost surely, 2^70722565 is an apocalyptic number.

It is an amenable number.

70722565 is a deficient number, since it is larger than the sum of its proper divisors (14228723).

70722565 is a wasteful number, since it uses less digits than its factorization.

70722565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14039.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 70722565 is about 8409.6709210290. The cubic root of 70722565 is about 413.5417245363.

The spelling of 70722565 in words is "seventy million, seven hundred twenty-two thousand, five hundred sixty-five".