61825990 has 16 divisors (see below), whose sum is σ = 111396240. Its totient is φ = 24706080.

The previous prime is 61825961. The next prime is 61826003. The reversal of 61825990 is 9952816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10516 + ... + 15304.

It is an arithmetic number, because the mean of its divisors is an integer number (6962265).

Almost surely, 2^61825990 is an apocalyptic number.

61825990 is a deficient number, since it is larger than the sum of its proper divisors (49570250).

61825990 is a wasteful number, since it uses less digits than its factorization.

61825990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6087.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 61825990 is about 7862.9504640434. The cubic root of 61825990 is about 395.4185383647.

The spelling of 61825990 in words is "sixty-one million, eight hundred twenty-five thousand, nine hundred ninety".