60249991 has 2 divisors, whose sum is σ = 60249992. Its totient is φ = 60249990.

The previous prime is 60249983. The next prime is 60250027. The reversal of 60249991 is 19994206.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60249991 - 2³ = 60249983 is a prime.

It is a super-2 number, since 2×60249991² = 7260122831000162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60249941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30124995 + 30124996.

It is an arithmetic number, because the mean of its divisors is an integer number (30124996).

Almost surely, 2^60249991 is an apocalyptic number.

60249991 is a deficient number, since it is larger than the sum of its proper divisors (1).

60249991 is an equidigital number, since it uses as much as digits as its factorization.

60249991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 60249991 is about 7762.0867683890. The cubic root of 60249991 is about 392.0297227740.

The spelling of 60249991 in words is "sixty million, two hundred forty-nine thousand, nine hundred ninety-one".