70890053 has 16 divisors (see below), whose sum is σ = 78570240. Its totient is φ = 63550656.

The previous prime is 70890047. The next prime is 70890067. The reversal of 70890053 is 35009807.

It is not a de Polignac number, because 70890053 - 2⁶ = 70889989 is a prime.

It is a super-2 number, since 2×70890053² = 10050799228685618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70890023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95558 + ... + 96296.

It is an arithmetic number, because the mean of its divisors is an integer number (4910640).

Almost surely, 2^70890053 is an apocalyptic number.

It is an amenable number.

70890053 is a deficient number, since it is larger than the sum of its proper divisors (7680187).

70890053 is a wasteful number, since it uses less digits than its factorization.

70890053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 70890053 is about 8419.6230913266. The cubic root of 70890053 is about 413.8679225036.

The spelling of 70890053 in words is "seventy million, eight hundred ninety thousand, fifty-three".