70552631 has 4 divisors (see below), whose sum is σ = 71237712. Its totient is φ = 69867552.

The previous prime is 70552627. The next prime is 70552639. The reversal of 70552631 is 13625507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13625507 = 7 ⋅1946501.

It is a cyclic number.

It is not a de Polignac number, because 70552631 - 2² = 70552627 is a prime.

It is a super-2 number, since 2×70552631² = 9955347482044322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70552594 and 70552603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70552639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342386 + ... + 342591.

It is an arithmetic number, because the mean of its divisors is an integer number (17809428).

Almost surely, 2^70552631 is an apocalyptic number.

70552631 is a deficient number, since it is larger than the sum of its proper divisors (685081).

70552631 is a wasteful number, since it uses less digits than its factorization.

70552631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685080.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 70552631 is about 8399.5613575948. The cubic root of 70552631 is about 413.2102359904.

The spelling of 70552631 in words is "seventy million, five hundred fifty-two thousand, six hundred thirty-one".