70551972 has 60 divisors (see below), whose sum is σ = 195301260. Its totient is φ = 22132224.

The previous prime is 70551967. The next prime is 70551979. The reversal of 70551972 is 27915507.

70551972 is a `hidden beast` number, since 70 + 5 + 519 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 39012516 + 31539456 = 6246^2 + 5616^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70551979) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 897 + ... + 11912.

It is an arithmetic number, because the mean of its divisors is an integer number (3255021).

Almost surely, 2^70551972 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 70551972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97650630).

70551972 is an abundant number, since it is smaller than the sum of its proper divisors (124749288).

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

70551972 is a wasteful number, since it uses less digits than its factorization.

70551972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12842 (or 12831 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 70551972 is about 8399.5221292643. The cubic root of 70551972 is about 413.2089494502.

The spelling of 70551972 in words is "seventy million, five hundred fifty-one thousand, nine hundred seventy-two".