70253580 has 48 divisors (see below), whose sum is σ = 198674784. Its totient is φ = 18547200.

The previous prime is 70253563. The next prime is 70253581. The reversal of 70253580 is 8535207.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (70253581) 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, 264 + ... + 11856.

It is an arithmetic number, because the mean of its divisors is an integer number (4139058).

Almost surely, 2^70253580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70253580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99337392).

70253580 is an abundant number, since it is smaller than the sum of its proper divisors (128421204).

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

70253580 is a wasteful number, since it uses less digits than its factorization.

70253580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11706 (or 11704 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 70253580 is about 8381.7408692944. The cubic root of 70253580 is about 412.6255852696.

Adding to 70253580 its reverse (8535207), we get a palindrome (78788787).

The spelling of 70253580 in words is "seventy million, two hundred fifty-three thousand, five hundred eighty".