61372583 has 4 divisors (see below), whose sum is σ = 61841208. Its totient is φ = 60903960.

The previous prime is 61372541. The next prime is 61372609. The reversal of 61372583 is 38527316.

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 61372583 - 2⁸ = 61372327 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 (61372513) 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, 234116 + ... + 234377.

It is an arithmetic number, because the mean of its divisors is an integer number (15460302).

Almost surely, 2^61372583 is an apocalyptic number.

61372583 is a deficient number, since it is larger than the sum of its proper divisors (468625).

61372583 is a wasteful number, since it uses less digits than its factorization.

61372583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468624.

The product of its digits is 30240, while the sum is 35.

The square root of 61372583 is about 7834.0655473388. The cubic root of 61372583 is about 394.4495521450.

Adding to 61372583 its reverse (38527316), we get a palindrome (99899899).

The spelling of 61372583 in words is "sixty-one million, three hundred seventy-two thousand, five hundred eighty-three".