61252619 has 4 divisors (see below), whose sum is σ = 61563744. Its totient is φ = 60941496.

The previous prime is 61252579. The next prime is 61252643. The reversal of 61252619 is 91625216.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61252619 - 2¹⁶ = 61187083 is a prime.

It is a super-2 number, since 2×61252619² = 7503766668718322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61252699) 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, 155267 + ... + 155660.

It is an arithmetic number, because the mean of its divisors is an integer number (15390936).

Almost surely, 2^61252619 is an apocalyptic number.

61252619 is a deficient number, since it is larger than the sum of its proper divisors (311125).

61252619 is a wasteful number, since it uses less digits than its factorization.

61252619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311124.

The product of its digits is 6480, while the sum is 32.

The square root of 61252619 is about 7826.4052412330. The cubic root of 61252619 is about 394.1923764432.

The spelling of 61252619 in words is "sixty-one million, two hundred fifty-two thousand, six hundred nineteen".