70155252 has 72 divisors (see below), whose sum is σ = 183272544. Its totient is φ = 22616256.

The previous prime is 70155251. The next prime is 70155269. The reversal of 70155252 is 25255107.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70155251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158143 + ... + 158585.

It is an arithmetic number, because the mean of its divisors is an integer number (2545452).

Almost surely, 2^70155252 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 70155252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91636272).

70155252 is an abundant number, since it is smaller than the sum of its proper divisors (113117292).

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

70155252 is a wasteful number, since it uses less digits than its factorization.

70155252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 70155252 is about 8375.8732082094. The cubic root of 70155252 is about 412.4329896658.

It can be divided in two parts, 70155 and 252, that added together give a palindrome (70407).

The spelling of 70155252 in words is "seventy million, one hundred fifty-five thousand, two hundred fifty-two".