70499550 has 48 divisors (see below), whose sum is σ = 190737792. Its totient is φ = 17090400.

The previous prime is 70499543. The next prime is 70499563. The reversal of 70499550 is 5599407.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 70499499 and 70499508.

It is a congruent number.

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, 19714 + ... + 23013.

It is an arithmetic number, because the mean of its divisors is an integer number (3973704).

Almost surely, 2^70499550 is an apocalyptic number.

70499550 is an abundant number, since it is smaller than the sum of its proper divisors (120238242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70499550 is a wasteful number, since it uses less digits than its factorization.

70499550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42753 (or 42748 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 70499550 is about 8396.4010147205. The cubic root of 70499550 is about 413.1065823294.

The spelling of 70499550 in words is "seventy million, four hundred ninety-nine thousand, five hundred fifty".