51941501 has 4 divisors (see below), whose sum is σ = 51973404. Its totient is φ = 51909600.

The previous prime is 51941453. The next prime is 51941507. The reversal of 51941501 is 10514915.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31248100 + 20693401 = 5590^2 + 4549^2 .

It is a cyclic number.

It is not a de Polignac number, because 51941501 - 2⁶ = 51941437 is a prime.

It is a super-2 number, since 2×51941501² = 5395839052266002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51941507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13370 + ... + 16811.

It is an arithmetic number, because the mean of its divisors is an integer number (12993351).

Almost surely, 2^51941501 is an apocalyptic number.

It is an amenable number.

51941501 is a deficient number, since it is larger than the sum of its proper divisors (31903).

51941501 is a wasteful number, since it uses less digits than its factorization.

51941501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31902.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 51941501 is about 7207.0452336585. The cubic root of 51941501 is about 373.1110963865. Note that the first 3 decimals are identical.

The spelling of 51941501 in words is "fifty-one million, nine hundred forty-one thousand, five hundred one".