61051390 has 16 divisors (see below), whose sum is σ = 110000880. Its totient is φ = 24396480.

The previous prime is 61051387. The next prime is 61051391. The reversal of 61051390 is 9315016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61051391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10546 + ... + 15274.

It is an arithmetic number, because the mean of its divisors is an integer number (6875055).

Almost surely, 2^61051390 is an apocalyptic number.

61051390 is a deficient number, since it is larger than the sum of its proper divisors (48949490).

61051390 is a wasteful number, since it uses less digits than its factorization.

61051390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 61051390 is about 7813.5388909252. The cubic root of 61051390 is about 393.7602318665.

The spelling of 61051390 in words is "sixty-one million, fifty-one thousand, three hundred ninety".