70533745 has 4 divisors (see below), whose sum is σ = 84640500. Its totient is φ = 56426992.

The previous prime is 70533737. The next prime is 70533767. The reversal of 70533745 is 54733507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54733507 = 31 ⋅1765597.

It can be written as a sum of positive squares in 2 ways, for example, as 55175184 + 15358561 = 7428^2 + 3919^2 .

It is a cyclic number.

It is not a de Polignac number, because 70533745 - 2³ = 70533737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70533745.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7053370 + ... + 7053379.

It is an arithmetic number, because the mean of its divisors is an integer number (21160125).

Almost surely, 2^70533745 is an apocalyptic number.

It is an amenable number.

70533745 is a deficient number, since it is larger than the sum of its proper divisors (14106755).

70533745 is a wasteful number, since it uses less digits than its factorization.

70533745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14106754.

The product of its (nonzero) digits is 44100, while the sum is 34.

The square root of 70533745 is about 8398.4370569767. The cubic root of 70533745 is about 413.1733624071.

The spelling of 70533745 in words is "seventy million, five hundred thirty-three thousand, seven hundred forty-five".