61252621 has 8 divisors (see below), whose sum is σ = 64097024. Its totient is φ = 58462560.

The previous prime is 61252579. The next prime is 61252643. The reversal of 61252621 is 12625216.

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

It is a cyclic number.

It is not a de Polignac number, because 61252621 - 2¹¹ = 61250573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61252651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11271 + ... + 15796.

It is an arithmetic number, because the mean of its divisors is an integer number (8012128).

Almost surely, 2^61252621 is an apocalyptic number.

It is an amenable number.

61252621 is a deficient number, since it is larger than the sum of its proper divisors (2844403).

61252621 is a wasteful number, since it uses less digits than its factorization.

61252621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27171.

The product of its digits is 1440, while the sum is 25.

The square root of 61252621 is about 7826.4053690056. The cubic root of 61252621 is about 394.1923807335.

Adding to 61252621 its reverse (12625216), we get a palindrome (73877837).

The spelling of 61252621 in words is "sixty-one million, two hundred fifty-two thousand, six hundred twenty-one".