61825407 has 16 divisors (see below), whose sum is σ = 96134400. Its totient is φ = 35328216.

The previous prime is 61825369. The next prime is 61825429. The reversal of 61825407 is 70452816.

It is not a de Polignac number, because 61825407 - 2⁷ = 61825279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61825457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29013 + ... + 31070.

It is an arithmetic number, because the mean of its divisors is an integer number (6008400).

Almost surely, 2^61825407 is an apocalyptic number.

61825407 is a deficient number, since it is larger than the sum of its proper divisors (34308993).

61825407 is an equidigital number, since it uses as much as digits as its factorization.

61825407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60107 (or 60093 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 61825407 is about 7862.9133913582. The cubic root of 61825407 is about 395.4172954692.

The spelling of 61825407 in words is "sixty-one million, eight hundred twenty-five thousand, four hundred seven".