61504014 has 64 divisors (see below), whose sum is σ = 146200320. Its totient is φ = 17003520.

The previous prime is 61503989. The next prime is 61504039. The reversal of 61504014 is 41040516.

It is an interprime number because it is at equal distance from previous prime (61503989) and next prime (61504039).

It is a super-2 number, since 2×61504014² = 7565487476224392, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82857 + ... + 83595.

It is an arithmetic number, because the mean of its divisors is an integer number (2284380).

Almost surely, 2^61504014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61504014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73100160).

61504014 is an abundant number, since it is smaller than the sum of its proper divisors (84696306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61504014 is a wasteful number, since it uses less digits than its factorization.

61504014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 61504014 is about 7842.4494897959. The cubic root of 61504014 is about 394.7309260793.

The spelling of 61504014 in words is "sixty-one million, five hundred four thousand, fourteen".