61252787 has 4 divisors (see below), whose sum is σ = 61429656. Its totient is φ = 61075920.

The previous prime is 61252781. The next prime is 61252817. The reversal of 61252787 is 78725216.

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 61252787 - 2⁴ = 61252771 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61252787.

It is not an unprimeable number, because it can be changed into a prime (61252781) 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, 87914 + ... + 88607.

It is an arithmetic number, because the mean of its divisors is an integer number (15357414).

Almost surely, 2^61252787 is an apocalyptic number.

61252787 is a deficient number, since it is larger than the sum of its proper divisors (176869).

61252787 is a wasteful number, since it uses less digits than its factorization.

61252787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176868.

The product of its digits is 47040, while the sum is 38.

The square root of 61252787 is about 7826.4159741225. The cubic root of 61252787 is about 394.1927368319.

The spelling of 61252787 in words is "sixty-one million, two hundred fifty-two thousand, seven hundred eighty-seven".