57213626 has 8 divisors (see below), whose sum is σ = 86367540. Its totient is φ = 28424448.

The previous prime is 57213623. The next prime is 57213661. The reversal of 57213626 is 62631275.

It can be written as a sum of positive squares in 2 ways, for example, as 51854401 + 5359225 = 7201^2 + 2315^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 57213592 and 57213601.

It is not an unprimeable number, because it can be changed into a prime (57213623) 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, 90791 + ... + 91418.

Almost surely, 2^57213626 is an apocalyptic number.

57213626 is a deficient number, since it is larger than the sum of its proper divisors (29153914).

57213626 is a wasteful number, since it uses less digits than its factorization.

57213626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182368.

The product of its digits is 15120, while the sum is 32.

The square root of 57213626 is about 7563.9689317183. The cubic root of 57213626 is about 385.3302973131.

The spelling of 57213626 in words is "fifty-seven million, two hundred thirteen thousand, six hundred twenty-six".